Charge Health Dictionary

Charge: From 1 Different Sources


In health care, a charge is the monetary amount that is billed to the user of a product or service by the provider.
Health Source: Community Health
Author: Health Dictionary

Electrophoresis

The migration of charged particles between electrodes. A simple method of electrophoresis, known as paper electrophoresis, has been introduced to analyse PROTEIN in body ?uids. This method consists in applying the protein-containing solution as a spot or a streak to a strip of ?lter paper which has been soaked in bu?er solution and across the ends of which a potential di?erence is then applied for some hours. Comparison is made between ?lter strips of normal ?uids and that of the patient under investigation. Identi?cation and quanti?cation of proteins in the blood are possible using this method.... electrophoresis

Cyclotron

A machine in which positively charged atomic particles are so accelerated that they acquire energies equivalent to those produced by millions of volts. From the medical point of view, its interest is that it is a source of neutrons. (See RADIOTHERAPY.)... cyclotron

Electrolytes

In my context, acids, bases, and salts that contribute to the maintenance of electrical charges, membrane integrity, and acid-alkaline balance in the blood and lymph.... electrolytes

Isotope

This is a form of a chemical element with the same chemical properties as other forms, but which has a di?erent atomic mass. It contains an identical number of positively charged particles called protons, in the nucleus, giving it the same atomic number, but the numbers of neutrons di?er. A radioactive isotope, or radionuclide, is one that decays into other isotopes, and in doing so emits alpha, beta or gamma radiation.

Applications of radionuclides to diagnosis The use of radionuclides in diagnosis is based on the fact that it is possible to tag many of the substances normally present in the body with a radioactive label. Certain synthetic radioactive elements, such as technetium, can also be used. Because it is possible to detect minute quantities of radioactive material, only very small doses are needed, making the procedure a safe one. Furthermore the body pool of the material is therefore not appreciably altered, and metabolism is not disturbed. Thus in studies of iodine metabolism the ratio of radioactive atoms administered to stable atoms in the body pool is of the order of 1:1,000 million. By measuring radioactivity in the body, in blood samples, or in the excreta it is possible to gain information about the fate of the labelled substance, and hence of the chemically identical inactive material. Therefore it is theoretically possible to trace the absorption, distribution and excretion of any substance normally present in the body, provided that it can be tagged with a suitable radioactive label.

If the investigation necessitates tracing the path of the material through the body by means of external counting over the body surface, it is obviously essential to use an isotope that emits gamma radiation or positrons. If, however, only measurements on blood sample or excreta are required, it is possible to use pure beta emitters. Whole-body counters measure the total radioactivity in the body, and these are of great value in absorption studies.

Moving images can provide information on body functions such as the movements of the heart, blood ?ow, bile ?ow in the liver, and urine in the kidneys. The development of COMPUTED TOMOGRAPHY or CT scanning has replaced radionuclide scanning for some imaging procedures.

Five main groups of diagnostic uses may be de?ned:

(1) METABOLIC STUDIES The use of radioactive materials in metabolic studies is based on the fundamental property that all isotopes of an element are chemically identical. The radioactive isotope is used as a true isotope tracer – that is, when introduced into the body (in whatever form) it behaves in the same way as the inactive element. For example, isotopes of iodine are used to measure thyroid function (see THYROID GLAND), and isotopes of calcium enable kinetic studies of bone formation and destruction to be performed.... isotope

Ion

A particle that carries an electrical charge; positive ions are called cations and negative ions are called anions. Many vital body processes, such as the transmission of nerve impulses, depend on the movement of ions across cell membranes. Sodium is the principal cation in the fluid that bathes all cells (extracellular fluid). It affects the flow of water into and out of cells (see osmosis), thereby influencing the concentration of body fluids.

The acidity of blood and other body fluids depends on the level of hydrogen cations, which are produced by metabolic processes. To prevent the fluids from becoming too acidic, hydrogen cations are neutralized by bicarbonate

anions in the extracellular fluid and blood, and by phosphate anions inside cells (see acid–base balance).... ion

Afferent

An adjective to describe nerves, blood vessels or lymphatic vessels that conduct their electrical charge or contents inwards to the brain, spinal cord or relevant organ. (Opposite: EFFERENT.)... afferent

Autoimmunity

The state of having acquired an immunologic memory that says a normal cell membrane is “other”, and having forming antibody responses against it. A viral infection or organic chemical (hapten) may have started the response, but surviving healthy cells may have so close a charge pattern (epitope) that acquired immunity keeps on as if the cell was still “other”. Any physical stress that causes the target tissue to become inflamed or replicate rapidly to heal can restimulate the auto-immune response.... autoimmunity

Capital Expenditure

Expenditure for the acquisition, replacement, modernization or expansion of facilities or equipment which, under generally accepted accounting principles, is not properly chargeable as an expense of operation and maintenance.... capital expenditure

Caplllary

The smallest blood or lymph vessel, formed of single layers of interconnected endothelial cells, sometimes with loosely attached connective tissue basement cells for added support. Capillaries allow the transport across their membranes and between their crevices of diffusible nutrients and waste products. Blood capillaries expand and contract, depending upon how much blood is needed in a given tissue and how much is piped into them by the small feeder arteries upstream. They further maintain a strong repelling charge that keeps blood proteins and red blood cells pushed into the center of the flow. Lymph capillaries have many open crypts, allowing free absorption of interstitial fluid forced out of the blood; these capillaries tend to maintain a charge that attracts bits of cellular garbage too large to return through the membranes of exiting venous capillaries.... caplllary

Child Abuse

This traditional term covers the neglect, physical injury, emotional trauma and sexual abuse of a child. Professional sta? responsible for the care and well-being of children now refer to physical injury as ‘non-accidental injury’. Child abuse may be caused by parents, relatives or carers. In England around 35,000 children are on local-authority social-service department child-protection registers – that is, are regarded as having been abused or at risk of abuse. Physical abuse or non-accidental injury is the most easily recognised form; victims of sexual abuse may not reveal their experiences until adulthood, and often not at all. Where child abuse is suspected, health, social-care and educational professionals have a duty to report the case to the local authority under the terms of the Children Act. The authority has a duty to investigate and this may mean admitting a child to hospital or to local-authority care. Abuse may be the result of impulsive action by adults or it may be premeditated: for example, the continued sexual exploitation of a child over several years. Premeditated physical assault is rare but is liable to cause serious injury to a child and requires urgent action when identi?ed. Adults will go to some lengths to cover up persistent abuse. The child’s interests are paramount but the parents may well be under severe stress and also require sympathetic handling.

In recent years persistent child abuse in some children’s homes has come to light, with widespread publicity following o?enders’ appearances in court. Local communities have also protested about convicted paedophiles, released from prison, coming to live in their communities.

In England and Wales, local-government social-services departments are central in the prevention, investigation and management of cases of child abuse. They have four important protection duties laid down in the Children Act 1989. They are charged (1) to prevent children from suffering ill treatment and neglect; (2) to safeguard and promote the welfare of children in need; (3) when requested by a court, to investigate a child’s circumstances; (4) to investigate information – in concert with the NSPCC (National Society for the Prevention of Cruelty to Children) – that a child is suffering or is likely to suffer signi?cant harm, and to decide whether action is necessary to safeguard and promote the child’s welfare. Similar provisions exist in the other parts of the United Kingdom.

When anyone suspects that child abuse is occurring, contact should be made with the relevant social-services department or, in Scotland, with the children’s reporter. (See NONACCIDENTAL INJURY (NAI); PAEDOPHILIA.)... child abuse

Communal Care

Assistance provided free of charge or at reduced rates to members of a group or society. Other members of the group or society generally provide care on a voluntary basis.... communal care

Dependence

Physical or psychological reliance on a substance or an individual. A baby is naturally dependent on its parents, but as the child develops, this dependence lessens. Some adults, however, remain partly dependent, making abnormal demands for admiration, love and help from parents, relatives and others.

The dependence that most concerns modern society is one in which individuals become dependent on or addicted to certain substances such as alcohol, drugs, tobacco (nicotine), caffeine and solvents. This is often called substance abuse. Some people become addicted to certain foods or activities: examples of the latter include gambling, computer games and use of the Internet.

The 28th report of the World Health Organisation Expert Committee on Drug Dependence in 1993 de?ned drug dependence as: ‘A cluster of physiological, behavioural and cognitive phenomena of variable intensity, in which the use of a psychoactive drug (or drugs) takes on a high priority. The necessary descriptive characteristics are preoccupation with a desire to obtain and take the drug and persistent drug-seeking behaviour. Psychological dependence occurs when the substance abuser craves the drug’s desirable effects. Physical dependence occurs when the user has to continue taking the drug to avoid distressing withdrawal or abstinence symptoms. Thus, determinants and the problematic consequences of drug dependence may be biological, psychological or social and usually interact.’

Di?erent drugs cause di?erent rates of dependence: TOBACCO is the most common substance of addiction; HEROIN and COCAINE cause high rates of addiction; whereas ALCOHOL is much lower, and CANNABIS lower again. Smoking in the western world reached a peak after World War II with almost 80 per cent of the male population smoking. The reports on the link between smoking and cancer in the early 1960s resulted in a decline that has continued so that only around a quarter of the adult populations of the UK and USA smokes. Globally, tobacco consumption continues to grow, particularly in the developing world with multinational tobacco companies marketing their products aggressively.

Accurate ?gures for illegal drug-taking are hard to obtain, but probably approximately 4 per cent of the population is dependent on alcohol and 2 per cent on other drugs, both legal and illegal, at any one time in western countries.

How does dependence occur? More than 40 distinct theories or models of drug misuse have been put forward. One is that the individual consumes drugs to cope with personal problems or diffculties in relations with others. The other main model emphasises environmental in?uences such as drug availability, environmental pressures to consume drugs, and sociocultural in?uences such as peer pressure.

By contrast to these models of why people misuse drugs, models of compulsive drug use – where individuals have a compulsive addiction

– have been amenable to testing in the laboratory. Studies at cellular and nerve-receptor levels are attempting to identify mechanisms of tolerance and dependence for several substances. Classical behaviour theory is a key model for understanding drug dependence. This and current laboratory studies are being used to explain the reinforcing nature of dependent substances and are helping to provide an explanatory framework for dependence. Drug consumption is a learned form of behaviour. Numerous investigators have used conditioning theories to study why people misuse drugs. Laboratory studies are now locating the ‘reward pathways’ in the brain for opiates and stimulants where positive reinforcing mechanisms involve particular sectors of the brain. There is a consensus among experts in addiction that addictive behaviour is amenable to e?ective treatment, and that the extent to which an addict complies with treatment makes it possible to predict a positive outcome. But there is a long way to go before the mechanisms of drug addiction are properly understood or ways of treating it generally agreed.

Effects of drugs Cannabis, derived from the plant Cannabis sativa, is a widely used recreational drug. Its two main forms are marijuana, which comes from the dried leaves, and hashish which comes from the resin. Cannabis may be used in food and drink but is usually smoked in cigarettes to induce relaxation and a feeling of well-being. Heavy use can cause apathy and vagueness and may even cause psychosis. Whether or not cannabis leads people to using harder drugs is arguable, and a national debate is underway on whether its use should be legalised for medicinal use. Cannabis may alleviate the symptoms of some disorders – for example, MULTIPLE SCLEROSIS (MS) – and there are calls to allow the substance to be classi?ed as a prescribable drug.

About one in ten of Britain’s teenagers misuses volatile substances such as toluene at some time, but only about one in 40 does so regularly. These substances are given o? by certain glues, solvents, varnishes, and liquid fuels, all of which can be bought cheaply in shops, although their sale to children under 16 is illegal. They are often inhaled from plastic bags held over the nose and mouth. Central-nervous-system excitation, with euphoria and disinhibition, is followed by depression and lethargy. Unpleasant effects include facial rash, nausea and vomiting, tremor, dizziness, and clumsiness. Death from COMA and acute cardiac toxicity is a serious risk. Chronic heavy use can cause peripheral neuropathy and irreversible cerebellar damage. (See SOLVENT ABUSE (MISUSE).)

The hallucinogenic or psychedelic drugs include LYSERGIC ACID DIETHYLAMIDE (LSD) or acid, magic mushrooms, ecstasy (MDMA), and phencyclidine (PCP or ‘angel’ dust, mainly used in the USA). These drugs have no medicinal uses. Taken by mouth, they produce vivid ‘trips’, with heightened emotions and perceptions and sometimes with hallucinations. They are not physically addictive but can cause nightmarish bad trips during use and ?ashbacks (vivid reruns of trips) after use, and can probably trigger psychosis and even death, especially if drugs are mixed or taken with alcohol.

Stimulant drugs such as amphetamine and cocaine act like adrenaline and speed up the central nervous system, making the user feel con?dent, energetic, and powerful for several hours. They can also cause severe insomnia, anxiety, paranoia, psychosis, and even sudden death due to convulsions or tachycardia. Depression may occur on withdrawal of these drugs, and in some users this is su?ciently deterrent to cause psychological dependence. Amphetamine (‘speed’) is mainly synthesised illegally and may be eaten, sni?ed, or injected. Related drugs, such as dexamphetamine sulphate (Dexedrine), are prescribed pills that enter the black market. ECSTASY is another amphetamine derivative that has become a popular recreational drug; it may have fatal allergic effects. Cocaine and related drugs are used in medicine as local anaesthetics. Illegal supplies of cocaine (‘snow’ or ‘ice’) and its derivative, ‘crack’, come mainly from South America, where they are made from the plant Erythroxylon coca. Cocaine is usually sni?ed (‘snorted’) or rubbed into the gums; crack is burnt and inhaled.

Opiate drugs are derived from the opium poppy, Papaver somniferum. They are described as narcotic because they induce sleep. Their main medical use is as potent oral or injectable analgesics such as MORPHINE, DIAMORPHINE, PETHIDINE HYDROCHLORIDE, and CODEINE. The commonest illegal opiate is heroin, a powdered form of diamorphine that may be smoked, sni?ed, or injected to induce euphoria and drowsiness. Regular opiate misuse leads to tolerance (the need to take ever larger doses to achieve the same e?ect) and marked dependence. A less addictive oral opiate, METHADONE HYDROCHLORIDE, can be prescribed as a substitute that is easier to withdraw.

Some 75,000–150,000 Britons now misuse opiates and other drugs intravenously, and pose a huge public-health problem because injections with shared dirty needles can carry the blood-borne viruses that cause AIDS/HIV and HEPATITIS B. Many clinics now operate schemes to exchange old needles for clean ones, free of charge. Many addicts are often socially disruptive.

For help and advice see APPENDIX 2: ADDRESSES: SOURCES OF INFORMATION, ADVICE, SUPPORT AND SELF-HELP – National Dugs Helpline.

(See ALCOHOL and TOBACCO for detailed entries on those subjects.)... dependence

Electron

One of the negatively charged subatomic particles distributed around a positive nucleus (positron) to form an atom. (See RADIOTHERAPY.)... electron

Fee For Service (ffs)

Method of billing for health services under which a medical practitioner or other practitioner charges separately for each patient encounter or service rendered. Under a fee-for-service payment system, expenditures increase if the fees themselves increase, if more units of service are provided, or if more expensive services are substituted for less expensive ones. This system contrasts with salary, per capita, or other prepayment systems, where the payment to the medical practitioner is not changed according to the number of services actually used.... fee for service (ffs)

Circulatory System Of The Blood

The course of the circulation is as follows: the veins pour their blood, coming from the head, trunk, limbs and abdominal organs, into the right atrium of the HEART. This contracts and drives the blood into the right ventricle, which then forces the blood into the LUNGS by way of the pulmonary artery. Here it is contained in thin-walled capillaries, over which the air plays freely, and through which gases pass readily out and in. The blood gives o? carbon dioxide (CO2) and takes up oxygen (see RESPIRATION), and passes on by the pulmonary veins to the left atrium of the heart. The left atrium expels it into the left ventricle, which forces it on into the aorta, by which it is distributed all over the body. Passing through capillaries in the various tissues, it enters venules, then veins, which ultimately unite into two great veins, the superior and the inferior vena cava, these emptying into the right atrium. This complete circle is accomplished by any particular drop of blood in about half a minute.

In one part of the body there is a further complication. The veins coming from the bowels, charged with food material and other products, split up, and their blood undergoes a second capillary circulation through the liver. Here it is relieved of some food material and puri?ed, and then passes into the inferior vena cava, and so to the right atrium. This is known as the portal circulation.

The circle is maintained always in one direction by four valves, situated one at the outlet from each cavity of the heart.

The blood in the arteries going to the body generally is bright red, that in the veins dull red in colour, owing to the former being charged with oxygen and the latter with carbon dioxide (see RESPIRATION). For the same reason the blood in the pulmonary artery is dark, that in the pulmonary veins is bright. There is no direct communication between the right and left sides of the heart, the blood passing from the right ventricle to the left atrium through the lungs.

In the embryo, before birth, the course of circulation is somewhat di?erent, owing to the fact that no nourishment comes from the bowels nor air into the lungs. Accordingly, two large arteries pass out of the navel, and convey blood to be changed by contact with maternal blood (see PLACENTA), while a large vein brings this blood back again. There are also communications between the right and left atria, and between pulmonary artery and aorta. The latter is known as the ductus arteriosus. At birth all these extra vessels and connections close and rapidly shrivel up.... circulatory system of the blood

Drugs

These are natural products or synthetic chemicals that can alter the way in which the body works, or be used to prevent or treat disease. One or more drugs, combined with stabilisers, colourings, and other ingredients, make(s) up a medicine for practical use in treating patients. (See DEPENDENCE; MEDICINES.) In Britain, the supply of drugs is controlled by the Medicines Act. Some drugs are available only on prescription; some both on prescription and over the counter; and some are not available on NHS prescription. When enquiring about drugs that a patient is taking, it is essential to ask about all items bought over the counter and any herbal or traditional remedies that might be used, as these can interact with other prescribed drugs (see DRUG INTERACTIONS) or affect the patient’s presenting complaints. Each drug has a single generic name, but many will also have several proprietary (brand) names. It is often much cheaper to prescribe the generic form of a drug, and many doctors do so. Many hospitals and general practices in the United Kingdom now provide a list of suggested drugs for doctors to prescribe. If a doctor wishes to use a drug not on the list, he or she must give a valid reason.

Prescriptions for drugs should be printed or written clearly in ink and signed and dated by the prescriber (computer-generated facsimile signatures do not meet legal requirements). They should include the patient’s name, address and age (obligatory for children under 12), the name of the drug to be supplied, the dose and dose frequency, and the total quantity to be supplied. Any special instructions (e.g. ‘after food’) should be stated. There are special regulations about the prescription of drugs controlled under the Misuse of Drugs Regulations 1985 (see CONTROLLED DRUGS). A pharmacist can advise about which drugs are available without prescription, and is able to recommend treatment for many minor complaints. Information about exemption from prescription charges in the NHS can be obtained from health visitors, general practitioners, or social security o?ces.... drugs

Ion Atom

An atom (or a collection of atoms) that has an electrical charge. Positive atoms are cations, negative ones are anions. Calcium, hydrogen, potassium and sodium are positive ions. Negative ones include bicarbonate chloride and phosphate. All the substances are critical to the body’s physiological activities.... ion atom

National Health Service (nhs)

The United Kingdom’s National Health Service was created by Act of Parliament and inaugurated on 5 July 1948. Its original aim was to provide a comprehensive system of health care to everyone, free at the point of delivery. Scotland had its own, similar legislation, as did Northern Ireland. The service is funded by National Insurance contributions and from general taxation, with a small amount from patient charges. The structure, functioning and ?nancing of the NHS have been – and still are – undergoing substantial changes.... national health service (nhs)

Ozone

A specially active and poisonous form of OXYGEN in which three volumes of the gas are condensed into the space ordinarily occupied by two. It has a characteristic smell and is a strong oxidising agent. Formed when an electrical charge is passed through oxygen or air, it is found at high altitudes in the atmosphere where it screens out much of the sun’s ultraviolet radiation. The ozone layer, as it is called, is being damaged by pollutant gases from earth. Unless this damage is reversed, lethal quantities of ultraviolet radiation could penetrate to the earth’s surface, further warming the world’s climates, with long-term damage to the environment.... ozone

Pet Scanning

Positron-emission tomography is a NUCLEAR MEDICINE diagnostic technique that works by identifying positrons – positively charged electrons – given o? by substances labelled with radioactive varieties of elements. The result is three-dimensional images that identify metabolic and chemical activities of tissues, especially brain tissues. The images provide information about tissue and organ functions, and can be collated with structural images using COMPUTED TOMOGRAPHY or magnetic resonance imaging (MRI). The equipment is very expensive and available only in selected hospitals in the United Kingdom. The technique is especially valuable in the assessment of neurological disorders.... pet scanning

Community Care

Community care is intended to enable people to lead independent lives at home or in local residential units for as long as they are able to do so. For many years there has been a trend in Britain for care of elderly people and those with mental or physical problems to be shifted from hospitals and into community settings. In 1988 Sir Roy Gri?ths’s report to the Secretaries of State for Social Services, Community Care: Agenda for Action, advised on the best use of public funds to provide e?ective community care. The White Paper Caring for People, published in 1989, outlined the government’s ideas for developing these proposals further. The plans were then enshrined in law with the National Health Service and Community Care Act of 1990.

Since April 1993, local social-services departments have been responsible for assessing what help people need from community-care services: these can include home helps, meals on wheels, sheltered housing, etc. Recipients of such services are means-tested and make variable contributions towards the costs. Policies on charging vary from one area to another and there are wide geographical variations in the range of services provided free and the charges levied for others.

People with complex needs may be assigned a case manager to coordinate the care package and ensure that appropriate responses are made to changing circumstances. The success of community care hinges on e?ective coordination of the services of an often large number of providers from the health and social-services sectors. Poor communication between sectors and inadequate coordination of services have been among the most common complaints about the community-care reforms.

Health care for people being cared for in the community remains largely free under the NHS arrangements, although there are regular debates about where the boundaries should be drawn between free health services and means-tested social care. A distinction has been made between necessary nursing care (funded by the state) and normal personal care (the responsibility of the patient), but the dividing line often proves hard to de?ne.

As care has shifted increasingly into the community, previous hospital facilities have become redundant. Vast numbers of beds in long-stay geriatric hospitals and in-patient psychiatric wards have been closed. There is now concern that too few beds remain to provide essential emergency and respite services. In some areas, patients ?t for discharge are kept in hospital because of delay in setting up community services for the elderly, or because of the inability of the local authority to fund appropriate care in a nursing home or at home with community-care support for other patients; the resulting BED-BLOCKING has an adverse e?ect on acutely ill patients needing hospital admission.

Community care, if correctly funded and coordinated, is an excellent way of caring for people with long-term needs, but considerable work is still needed in Britain to ensure that all patients have access to high-quality community care when they need it. Problems in providing such are are not con?ned to the UK.... community care

Gmelina Arborea

Roxb.

Synonym: Premna arborea Roth.

Family: Verbenaceae.

Habitat: Throughout India, up to 1,700 m on the hills and in Andaman Island; also grown in gardens.

English: Candahar tree, White Teak.

Ayurvedic: Gambhaari, Kaash- mari, Kaashmarya, Sarvatobhadraa, Bhadra, Mahaabhadraa, Sadaab- hadraa, Madhuparnikaa, Sriparni, Pitarohini, Hiraa, Bhadraparni, Trishati.

Siddha/Tamil: Kattanam, Kumizham

Action: Leaf—demulcent, bechic. Used for removing foetid dis charges from ulcers. Root— stomachic, laxative, antibilious, demulcent, galactagogue. Bark— anticephalalgic. Root and bark— febrifuge.

The Ayurvedic Pharmacopoeia ofIn- dia recommends the use of the bark and stem in inflammatory diseases and oedema; the fruit in dysuria and haem- orrhagic diseases.

The heartwood contains lignans, ar- borone, 7-oxodihydrogmelinol, pau- lownin acetate and epieudesmin; me- trans-p-methoxycinnamate and trans- p-hydroxycinnamic acid.

Alcoholic extract of stem bark showed anti-inflammatory activity comparable to phenylbutazone.

Dosage: Root, root bark—20-30 g for decoction. (API Vol. I.)

The leaves show antibiotic activity against E. coli and Staphylococcus aureus.... gmelina arborea

Radium

The radiations of radium consist of: (1) alpha rays, which are positively charged helium nuclei; (2) beta rays – negatively charged electrons; (3) gamma rays, similar to X-RAYS but of shorter wavelength. These days the use of radium is largely restricted to the treatment of carcinoma of the neck of the womb, the tongue, and the lips. Neither X-rays nor radium supersede active surgical measures when these are available for the complete removal of a tumour.... radium

Manager’s Stress

All in charge of other people are subject to a wide range of environmental stress, working conditions, conflict with superiors. Some are more predisposed to stress than others. Alternatives. Ginseng, Valerian, Skullcap, Oats, Gotu Kola.

Tea. Skullcap 1; Oats 2; Valerian half. Mix. 1 teaspoon to each cup boiling water. 1 cup as desired.

Life Drops. Few drops in tea.

Lime flower tea, at night.

Ginkgo. For brain fatigue.

Diet. Avoid strong tea, coffee, alcohol. ... manager’s stress

Acid

A substance defined as a donor of hydrogen ions (hydrogen atoms with positive electrical charges). Acid molecules, when mixed with or dissolved in water, split up to release their constituent ions; all acids release hydrogen as the positive ion. (See also acid–base balance; alkali.)... acid

Alkali

Also known as a base, an alkali is chemically defined as a donor of hydroxyl ions (each of which comprises an atom of hydrogen linked to an atom of oxygen and has an overall negative electrical charge). Antacid drugs, such as sodium bicarbonate, are alkalis. Some alkalis, such as sodium hydroxide, are corrosive. (See also acid; acid–base balance.)... alkali

Ionizer

A device that produces ions (electrically charged particles).

Ionizers that produce negative ions can be used to neutralize positive ions in the atmosphere.

Some people believe that use of an ionizer reduces symptoms, such as headaches and fatigue, that may result from a build-up of positive ions generated by electrical machines.... ionizer

Healthcare Commission (commission For Health Improvement)

Launched in 1999 in England and Wales as CHI, this is an inspectorate charged with protecting patients from ‘unacceptable failings in the National Health Service’. A statutory body under the 1999 Health Act, it evaluates and re?nes local systems designed to safeguard standards of clinical quality. Working separately from the NHS and the health departments, it o?ers an independent safeguard that provides systems to monitor and improve clinical quality in primary care, community services and hospitals. As of 2004 it became responsible for dealing with patients’ complaints if they could not be settled by the trust concerned. The board members include health professionals, academics and eight lay members. Scotland has set up a similar statutory body. (See APPENDIX 7: STATUTORY ORGANISATIONS.)... healthcare commission (commission for health improvement)

Hysteria

An out-of-date description for a symptom (or symptoms) with no obvious organic cause, which is an unconscious reaction and from which the person may bene?t. It is now recognised as a dissociative disorder: such disorders – AMNESIA, FUGUE, multiple personality states and trancelike conditions – are powerful defence mechanisms against severe stress when a patient is unable to cope with a particular problem or problems. Symptoms can also mimic physical conditions: for example, apparent paralysis or inability to speak (mutism). Mass hysteria is a phenomenon characterised by extreme suggestibility in a group of often emotionally charged people.

The name originates from the ancient idea that hysteria – a Greek-based word for ‘UTERUS’

– was in some way associated with the womb. Hence the old-fashioned association of hysteria with women, and with supposed sexual disturbances. Doctors should make sure there is not a physical disease present to explain the symptoms before diagnosing a dissociative disorder. Most subside spontaneously, but if not, the individual needs psychiatric advice. Treatment is di?cult. Reasons for stress should be explored and, if possible, resolved. Hypnosis (see HYPNOTISM) to help the person to relive stressful episodes – known as ABREACTION – may be of value.... hysteria

Intermediate Care

Described by the UK government as ‘a bridge between hospital and home’ to speed discharge from acute care and provide recovery and rehabilitation services, this concept was a key element in the NHS Plan: plan for investment; a plan for reform, published in 2000. The government sees cottage hospitals, private nursing homes, and domiciliary and community settings as providing the heart of the proposed intermediate-care sector. Also in the plan, however, is the warning that the NHS would meet the costs only of nursing care for nursing-home residents: personal care would in future be charged for. (In Scotland the NHS funds personal-care costs.) The change in England would alter the principles on which the NHS was founded in 1948 – that all citizens would receive a universal, comprehensive service funded by the government. New care trusts will commission and deliver both primary and community health care as well as social care. The trusts will hold uni?ed, capped budgets and they will de?ne what is NHS care and what is social care. The social-care elements will be subject to the charging policies of local authorities. Of the 160,000 or so nursing-home residents in England, under 10 per cent have their care fully funded by the NHS. The funding future of this 10 per cent is uncertain, as will be the personal-care funding of 270,000 NHS patients expected to transfer from hospital into intermediate care each year. It is too early to say what e?ect these changes will have on a vulnerable section of the population. While the principle of using intermediate care to free expensive hospital beds is sensible, the uncertainties over funding and the grey area between the need for nursing and/or residential care will be a worry for elderly people, especially those of limited means. (Legislation to implement the government’s planned changes to the NHS was going through Parliament as this text was going to press, so modi?cations to them are possible.)... intermediate care

Intrinsic Factor

One of two proteins secreted from the lining of the stomach whose sole purpose is (it seems) to cradle B12 in a pre-fitted styrofoam mold and (A) carry it through the Seven Levels of Digestive Hell until it reaches those few absorption sites in the last foot of small intestine that understand its “Special Needs” (sounds either sexually kinky or the airplane dinner label on kosher food for flying Hassidim jewelers) and finally (B) slip it from one protein to the other, and thence into the cell membranes where its is turn handed over to (C) the specialized blood protein that can carry it safely to the final target tissues (3 times out of 4, the bone marrow). Cyanocobalamin (B12) has parts that fall off, radicals that twirl around in five directions on three charge potentials, and is as durable as a 49¢ water pistol. And, if we have an ulcer, chronic enteritis or long-standing steatorrhea, we either get B12 shots (and hope the liver still makes that blood carrier) or walk around with pernicious anemia and a hematocrit of 16.... intrinsic factor

Action Potential

the change in voltage that occurs across the membrane of a nerve or muscle cell when a *nerve impulse is triggered. It is due to the passage of charged particles across the membrane (see depolarization) and is an observable manifestation of the passage of an impulse.... action potential

Anion

n. an ion of negative charge, such as a bicarbonate ion (HCO3?) or a chloride ion (Cl?) (See also electrolyte). The anion gap is the difference between the concentrations of cations (positively charged ions) and anions, calculated from the formula:

It is used to estimate the unaccounted-for anions in the blood in cases of metabolic disturbance. The normal anion gap is 12–16 mmol/l.... anion

Battery

n. (in law) the wrongful touching of another person, which may be a criminal offence or a tort in civil law (the latter is known as trespass against the person). Any intentional touching of another is a potential battery unless it occurs with the *consent of the person involved. Consent therefore provides a defence against a charge of battery brought in relation to medical treatment.... battery

Cassette

n. (in radiography) a thin light-proof box in which a piece of photographic film is placed. It usually contains special screens, which fluoresce on exposure to X-rays, intensifying the image formed on photographic film when a radiographic exposure is taken. In *computerized radiography the cassette may contain an electrically charged plate.... cassette

Lacteals

Specialized lymph formations found in the small intestine mucosa. Together with enzymatic activities in the submucosa, they collect digested fats into stable transport bubbles called chylomicrons, and draw them up into the lymph system. There they are gradually leeched into the blood as the lymph passes upwards through the body, the remainder discharged into the venous blood with the lymph...12-24 hours later. Time-Released fat capsules. Fats lower the blood charge and make it sticky, which can interfere with vascular capabilities; the sideways bypassing of the blood in this manner spreads the fats out over long periods. The rest of the digested constituents can happily flow up to the liver through the portal system, unsludged, and the liver itself therefore has little lipid stress to face. If fats are poorly digested in the upper intestinal tract, the floating bubbles are larger, broken down too slowly to be well absorbed into the lymph system, and the portal blood...and liver...get sludged. Ever wonder why a bunch of lousy pizza can give you hemorrhoids the next day? Sludgy portal blood and backed-up venous drainage from the legs is why.... lacteals

Lobelia

Lobelia inflata. N.O. Campanulaceae.

Synonym: Indian Tobacco, Pukeweed, Emetic Weed.

Habitat: North America ; cultivated in Salt Lake City.

Features ? A biennial herb, in height from twelve to eighteen inches, the stem is angular and slightly hairy. One to three inches long, the leaves are alternate, sessile, and ovate-lanceolate, with small, whitish glands on the edge. The fruit is in the form of a flat, oval capsule, which contains ovate-oblong seeds about one eighth of an inch long, brown in colour, with a reticulated, pitted surface. The root is fibrous, and the plant bears a small blue, pointed flower. The taste is burning and acrid like tobacco, the odour slight. Part used ? Herb and seeds are used.

Action: Emetic, stimulant, antispasmodic, expectorant, and diaphoretic.

Lobelia inflata has for many years been one of the most widely discussed and hotly debated articles used in medicine. While many herbalists contend that it is the most valuable of all botanic remedies, official medicine in England classifies it as a poison. Herbalists who use Lobelia insist that it is most certainly not a poison, and that it can be administered by them in large doses with perfect safety. They use it chiefly as an emetic, and, as its administration brings about the prompt removal of accumulations of mucus, the action in bronchial complaints is speedy and beneficial. Coffin's comments in this connection are enthusiastic ? "Lobelia is decidedly the most certain and efficient emetic known, and is at the same time safe in its operations. Unlike most emetics from the mineral kingdom, it produces its specific effect without corroding the stomach or producing morbid irritation and inflammation of the mucous membrane of this organ, which are so common in the use of antimony, zinc, and the sulphate of copper. Lobelia may emphatically be said to 'operate in unison with the laws of life'."

In view of the controversy surrounding its use, the history of Lobelia is interesting. North American Indians had apparently long been acquainted

with its properties, but its first introduction to general use was due to the efforts of the famous American, Samuel Thomson. His disciple, Dr. Coffin, brought the herb to this country and used it extensively in his practice for over forty years, apparently with great success "in almost every form of disease, and from the tender infant to the aged," to quote Coffin himself. In both America and Britain herbalists have been tried on charges of causing death by administering Lobelia, but in no instance has a verdict been obtained against them.... lobelia

Cataphoresis

n. the introduction into the tissues of positively charged ionized substances (cations) by the use of a direct electric current. See iontophoresis.... cataphoresis

Phoenix Dactylifera

Linn.

Family: Palmae; Arecaceae.

Habitat: Cultivated in Punjab and Rajasthan.

English: Date Palm.

Ayurvedic: Kharjuura, Kharjuuraka, Kharjuurikaa. Pindakharjuurikaa. Chhuhaaraa (dry date). Pindakhar- juura is the fruit of Phoenix acaulis Roxb.

Unani: Khurmaa, Khajuur, Chhuharaa.

Siddha/Tamil: Perichchankay, Ita.

Action: Fruit pulp—antitussive, expectorant, demulcent, laxative, diuretic, restorative. Sap—cooling, laxative. Gum—used in diarrhoea and genitourinary diseases.

The fruit contains ascorbic acid (vitamin C), carotene (as vitamin A), nicotinic acid, riboflavin, thiamine, sugars (60-80%). Besides sucrose and invert sugars, rhamnose, xylose, ara- binose, ribose, galactose and galac- turonic acid have been identified in the fruit. Invert sugar predominates in the soft dates; sucrose in dry varieties. The dried date, used in Ayurvedic and Unani compositions, contains protein 2.5-3, fat 0.5, carbohydrates 75.882.9% and calcium 35.9, phosphorus 129.3 and iron 3.4 mg/100 g. Presence of sterols of ergosterol group, and esterone has been reported from dried date seeds.

Charged C-glycosylflavones and caf- feylshikimic acid, leucocyanidin are characteristically present in the plant. Flavonol glycosides are also common. Several uncharged C-glycosylflavones were also detected.

Dosage: Fresh fruit—10-50 g, dried fruit—10-15 g. (API, Vol. IV.)... phoenix dactylifera

Radiation

Energy in the form of waves or particles. Radiation is mainly electromagnetic and is broadly classi?ed as ionising and non-ionising. The former can propel ions from an atom; these have an electrical charge and can combine chemically with each other. Ionisation occurring in molecules that have a key function in living tissue can cause biological damage which may affect existing tissue or cause mutations in the GENES of germ-cell nuclei (see GAMETE; CELLS). Non-ionising radiation agitates the constituent atoms of nuclei but is insu?ciently powerful to produce ions.

Ionising radiation comprises X-RAYS, GAMMA RAYS and particle radiation. X-rays are part of the continuous electromagnetic-wave spectrum: this also includes gamma rays, infra-red radiation, ultraviolet light and visible light. They have a very short wavelength and very high frequency, and their ability to penetrate matter depends upon the electrical energy generating them. X-rays that are generated by 100,000 volts can pass through body tissue and are used to produce images – popularly known as X-rays. X-rays, generated at several million volts can destroy tissue and are used in RADIOTHERAPY for killing cancer cells. Gamma rays are similar to X-rays but are produced by the decay of radioactive materials. Particle radiation, which can be produced electrically or by radioactive decay, comprises parts of atoms which have mass as well as (usually) an electrical charge.

Non-ionising radiation includes ultraviolet light, radio waves, magnetic ?elds and ULTRASOUND. Magnetic ?elds are used in magnetic resonance imaging (MRI) and ultrasound, which is inaudible high-frequency sound waves, and is used for both diagnoses and treatment in medicine.... radiation

Relate Marriage Guidance

The idea of a marriage-guidance council came from a group of doctors, clergy and social workers who were concerned for the welfare of marriage. It is based upon two major concepts: that marriage provides the best possible way for a man and woman to live together and rear their children; and that the counsellors share a basic respect for the unique personality of the individual and his (or her) right to make his (or her) own decisions. The organisation consists of between 120 and 130 Marriage Guidance Councils throughout the country, comprising about 1,250 counsellors. These Councils are a?liated to Relate National Marriage Guidance, which is responsible for the selection, training and continued supervision of all counsellors. Anyone seeking help can telephone or write for an appointment. No fees are charged, but those receiving help are encouraged to donate what they can.... relate marriage guidance

Rouleau

A group of red blood cells arranged together like a roll of coins, usually only noticed on a slide under a microscope. Since red blood cells in a reasonably healthy person should have a mutually repelling membrane charge, this means that something like an inflammatory response or an elevation of liver-synthesized lipids (LDLs and VLDLs) is occurring. Inflammation makes the blood “sticky,” and the lipids from the liver lower the charges. Remember, of course, that I am talking about subclinical imbalances...such things as rouleau can accompany some pretty gnarly diseases. Our kind of rouleau can give you a headache or make your hands and feet cold because it’s hard to push rolls of coins through little bitty capillaries.... rouleau

Cation

n. an ion of positive charge, such as a sodium ion (Na+). Compare anion. See electrolyte.... cation

Complex

n. 1. (in psychoanalysis) an emotionally charged and repressed group of ideas and beliefs that is capable of influencing an individual’s behaviour. The term in this sense was originally used by Jung, but it is now widely used in a looser sense to denote an unconscious motive. 2. (in medicine) a patient’s presentation in which there are a multitude of co-morbidities and/or social and psychological problems.... complex

Computerized Radiography

(CR) a system for replacing photographic film with a charged plate. Exposure to X-rays knocks charge off the plate. The resultant image can be read by a laser beam and stored digitally or printed out as required. This system is widely used in conjunction with *PACS systems.... computerized radiography

Coulomb

n. the *SI unit of electric charge, equal to the quantity of electricity transferred by 1 ampere in 1 second. Symbol: C.... coulomb

Depolarization

n. the sudden surge of charged particles across the membrane of a nerve cell or a muscle cell that accompanies a physicochemical change in the membrane and cancels out, or reverses, its resting potential to produce an *action potential. The passage of a *nerve impulse is a rapid wave of depolarization along the membrane of a nerve fibre.... depolarization

Tinnitus

A noise heard in the EAR without any external cause. It often accompanies DEAFNESS, and severely deaf patients ?nd tinnitus as troubling as – if not more so than – the deafness. Tinnitus is described as ‘objective’ if it is produced by sound generated within the body by vascular tumours or abnormal blood ?ows. In patients with conductive hearing loss, tinnitus may be the consequence of the blocking of outside noises so that their own bodily activities become audible. Even normal people occasionally suffer from tinnitus, but rarely at a level which prompts them to seek medical advice. Present knowledge of the neurophysiological mechanisms is that the noise ‘arises’ high in the central nervous system in the subcortical regions of the BRAIN.

The resting level of spontaneous neuronal activity in the hearing system is only just below that at which sound enters a person’s consciousness – a consequence of the ?ne-tuning of normal hearing; so it is not, perhaps, surprising that normally ‘unheard’ neuronal activity becomes audible. If a patient suffers sensorineural deafness, the body may ‘reset’ the awareness threshold of neural activity, with the brain attempting greater sensitivity in an e?ort to overcome the deafness. The condition has a strong emotional element and its management calls for a psychological approach to help sufferers cope with what are, in e?ect, physically untreatable symptoms. They should be reassured that tinnitus is not a signal of an impending stroke or of a disorder of the brain. COGNITIVE BEHAVIOUR THERAPY can be valuable in coping with the unwanted noise. Traditionally, masking sounds, generated by an electrical device in the ear, were used to help tinnitus sufferers by, in e?ect, making the tinnitus inaudible. Even with the introduction of psychological retraining treatment, these maskers may still be helpful; the masking-noise volume, however, should be kept as low as possible or it will interfere with the retraining process. For patients with very troublesome tinnitus, lengthy counselling and retraining courses may be required. Surgery is not recommended.

Under the auspices of the Royal National Institute for Deaf People, the RNID Tinnitus Helpline has been established. Calls are charged at local rates. (See also MENIÈRE’S DISEASE.)... tinnitus

Arthritis – Tuberculous

A chronic bone and joint condition due to bovine from of tuberculosis believed to be caused by drinking TB milk and cream. Mostly in children, beginning in fluids surrounding a joint before invading bone tissue. Instead of normal flesh colour a joint has a white appearance. Condition maybe secondary to disease of the lungs or glands. Pain worse at night.

Elecampane (Inula) has a direct effect on TB bacilli, controlling night sweats and localising the disease. Agents yielding salicylates (mild analgesics) Meadowsweet, White Willow, etc are of value. Echinacea increases phagocytic power of the leucocytes and may normalise percentage count of neutraphiles. To meet individual needs, it will be necessary to vary treatment many times during the course of the disease.

Alternatives. Echinacea, Elecampane, Balm of Gilead buds (Hyde), Gotu Kola, Comfrey root, Iceland Moss. Rupturewort promotes elasticity of lung tissue.

Decoction. Equal parts: Iceland Moss, Comfrey root, Elecampane root, Liquorice. Mix. 1oz to 1 pint water gently simmered 20 minutes in a covered vessel. Dose: Half a cup thrice daily.

Alternative formulae:– Powders. White Willow 2; Comfrey 1; Echinacea 1; Ginger quarter. Mix. Dose: 750mg (three 00 capsules or half a teaspoon) thrice daily.

Tinctures. White Willow 2; Echinacea 1; Blue Cohosh half; White Poplar half; Tincture Capsicum quarter. Mix. 1 teaspoon thrice daily before meals.

Tincture Krameria (Rhatany root), Dose: 30-60 drops in water thrice daily.

Fenugreek seed tea.

Comfrey. Potential benefit of Comfrey root outweighs risk.

Topical. Compresses: Mullein leaves, Lobelia, Comfrey root or Fenugreek. Evening Primrose oil. No massage to affected joints.

Diet. Low carbohydrate. Oily fish.

Supplements. Vitamins A, B6, B12, D, Niacin, Calcium, Iron, Phosphorus.

General. Tuberculosis is a notifiable disease for which specific medical treatment is available. Failure to comply may expose a practitioner to a charge of negligence. ... arthritis – tuberculous

Free Radicals

Both vegetable and animal tissues produce free radicals as a normal metabolic byproduct. They are found in many areas of human activity.

A radical is a group of atoms which can combine in the same way as single atoms to make a molecule. Free means uncombined. A free radical is a state in which a radical can exist before it combines – an incomplete molecule containing oxygen which has an uneven electrical charge. High energy oxygen atoms are known to form atheroma.

As well as being substances that take part in a process of metabolism, free radicals can be found in industrial fumes and cigarette smoke. They are oxidants and have an anti-bacterial effect. But their activity is not confined to bacteria alone. When produced in large amounts as in inflammation and infection, they may have a damaging effect upon the lining of blood vessels and other tissues. An excess is produced in ischaemic heart disease. They have been shown to be involved in jet lag, Alzheimer’s disease, rheumatoid arthritis, thrombosis, heart failure, cancer, irradiation sickness and a weak immune system. Damaging to the DNA, they are probably the greatest single cause of ill health. They hasten the ageing process. Vitamins A, C, E, being antioxidants and the mineral Selenium stimulate certain enzyme systems to limit damage done by these destructive elements.

Losing weight is believed to generate free radicals – a metabolic side-effect of dieting. See: ANTIOXIDANTS. ... free radicals

Farad

n. the *SI unit of capacitance, equal to the capacitance of a capacitor between the plates of which a potential difference of 1 volt appears when it is charged with 1 coulomb of electricity. Symbol: F.... farad

Information Commissioner

the person in charge of the independent public agency set up to regulate the use and storage of personal data under the Data Protection Act 1998 (see data protection). The office of the Information Commissioner both regulates the use of data under the Act and takes any enforcement action required as a result of noncompliance with the principles of the statute. The Information Commissioner’s office also promotes public access to official information under the Freedom of Information Act 2000.... information commissioner

Iontophoresis

n. the technique of introducing through the skin, by means of an electric current, charged particles of a drug, so that it reaches a deep site. The method has been used to transfer salicylate ions through the skin in the treatment of deep rheumatic pain. See also cataphoresis.... iontophoresis

Herbal Practitioner

WHAT THE LAW REQUIRES. The consulting herbalist is covered by Part III of The Supply of Herbal Remedies Order, 1977, which lists remedies that may be used in his surgery on his patients. He enjoys special exemptions under the Medicines Act (Sections 12 (1) and 56 (2)). Conditions laid down for practitioners include:

(a) The practitioner must supply remedies from premises (apart from a shop) in private practice ‘so as to exclude the public’. He is not permitted to exceed the maximum permitted dose for certain remedies, or to prescribe POM medicines.

(b) The practitioner must exercise his judgement in the presence of the patient, in person, before prescribing treatment for that person alone.

(c) For internal treatment, remedies are subject to a maximum dose restriction. All labels on internal medicines must show clearly the date, correct dosage or daily dosage, and other instructions for use. Medicines should not be within the reach of children.

(d) He may not supply any remedies appearing in Schedule 1. Neither shall he supply any on Schedule 2 (which may not be supplied on demand by retail).

He may supply all remedies included in the General Sales List (Order 2129).

(e) He must observe requirements of Schedule III as regards remedies for internal and external use.

(f) He must notify the Enforcement Authority that he intends to supply from a fixed address (not a shop) remedies listed in Schedule III.

(g) Proper clinical records should be kept, together with records of remedies he uses under Schedule III. The latter shall be available for inspection at any time by the Enforcement Authority.

The practitioner usually makes his own tinctures from ethanol for which registration with the Customs and Excise office is required. Duty is paid, but which may later be reclaimed. Accurate records of its consumption must be kept for official inspection.

Under the Medicines Act 1968 it is unlawful to manufacture or assemble (dispense) medicinal products without an appropriate licence or exemption. The Act provides that any person committing such an offence shall be liable to prosecution.

Herbal treatments differ from person to person. A prescription will be ‘tailored’ according to the clinical needs of the individual, taking into account race as well as age. Physical examination may be necessary to obtain an accurate diagnosis. The herbalist (phytotherapist) will be concerned not only in relieving symptoms but with treating the whole person.

If a person is receiving treatment from a member of the medical profession and who is also taking herbal medicine, he/she should discuss the matter with the doctor, he being responsible for the clinical management of the case.

The practitioner can provide incapacity certificates for illness continuing in excess of four days for those who are employed. It is usual for Form CCAM 1 5/87 to be used as issued on the authority of the Council for Complementary and Alternative medicine.

General practitioners operating under the UK National Health Service may use any alternative or complementary therapy they choose to treat their patients, cost refunded by the NHS. They may either administer herbal or other treatment themselves or, if not trained in medical herbalism can call upon the services of a qualified herbalist. The herbal practitioner must accept that the GP remains in charge of the patient’s clinical management.

See: MEDICINES ACT 1968, LABELLING OF HERBAL PRODUCTS, LICENSING OF HERBAL REMEDIES – EXEMPTIONS FROM. ... herbal practitioner

Notifiable Diseases

Notifiable diseases under the Public Health (Control of Disease Act, 1984) are:–

Acute encephalitis, acute meningitis, acute poliomyelitis, anthrax, cholera, diphtheria, dysentery (amoebic and bacillary), food poisoning, infective jaundice, leprosy, leptospirosis, lassa fever, mumps, malaria, marburg disease, measles, German measles, ophthalmia neonatorum, paratyphoid fever, plague, rabies, relapsing fever, scarlet fever, smallpox, tetanus, tuberculosis, typhoid fever, typhus, viral haemorrhagic fever, whooping cough and yellow fever.

Six communicable diseases are internationally notifiable to the World Health Organisation: yellow fever, plague, cholera, smallpox, louse-borne relapsing fever, louse-borne typhus.

Notification has to be made to local and central Government authorities. Certain occupational diseases and all cases of cancer must be registered and notified.

It is required that the above diseases and certain others receive modern medical therapy in a hospital or treatment under the supervision of a qualified physician. Failure to conform may expose a practitioner, registered or unregistered, to a charge of negligence. ... notifiable diseases

Nerve Impulse

the electrical activity in the membrane of a *neuron that – by its rapid spread from one region to the next – is the means by which information is transmitted within the nervous system along the axons of the neurons. The membrane of a resting nerve is charged (polarized) because of the different concentrations of ions inside and outside the cell. When a nerve impulse is triggered, a wave of *depolarization spreads, and ions flow across the membrane (see action potential). Until the nerve has undergone *repolarization no further nerve impulses can pass.... nerve impulse

Nhs Business Services Authority

(NHSBSA) a *special health authority formed in 2006 to provide a range of back office and financial services to NHS organizations, contractors, and patients. These include administering the NHS pension scheme, issuing European Health Insurance Cards to UK residents, and issuing penalty charge notices to patients who falsely claim to be exempt from paying prescription charges. NHSBSA also hosts NHS Prescription Services, which provides pharmacies with reimbursement for items supplied under NHS prescriptions.

NHS Business Services Authority website... nhs business services authority

Positron

n. an electrically charged particle released in some radioactive decays, notably fluorine-18 or nitrogen-13, that has the same mass as an electron but opposite charge. It has a very short lifetime as it quickly reacts with an electron (annihilation) to produce a pair of *gamma rays, which are emitted in diametrically opposite directions. The energy of each gamma ray is always 511 keV.... positron

Proton Therapy

a type of radiotherapy that uses a beam of protons. These charged particles are produced by a *cyclotron and penetrate only a predictable distance into the body depending on the proton energy. This is the radiotherapy treatment of choice for many childhood cancers, particularly brain and spinal tumours, as it can avoid more normal tissue and reduce the risk of long-term complications (including secondary malignancy) compared with photon (X-ray) beams.... proton therapy

Homoeopathy

A medical doctrine teaching that drugs capable of producing disease symptoms in a healthy person can, in infinitesimal doses, cure the same group of symptoms met in a particular disease.

Hippocrates was aware of the universal law similia similibus curentur (like cures like). He taught that some diseases were cured by similars, and others by contraries. Stahl (1738) was also aware of this law of healing: “diseases will yield to and be cured by remedies that produce a similar affection”. But it was Samuel Hahnemann (1755-1843) who proved to the world this doctrine held the key to the selection of specifically acting medicines. His early experiments with nux vomica, arnica, ignatia and veratrum showed how the medicine which cured produced a similar condition in healthy people.

While no one has yet discovered the ‘modus operandi’ of the science, it has grown up largely through empiric experience, especially during certain historical epidemics in different parts of the world. For example, in 1836 cholera raged through most of the cities of Austria. Orthodox medicine could do little.

Out of desperation, the Government commissioned the aid of homoeopathy. A crude hospital was hastily prepared and patients admitted. Results convinced the most hardened sceptics. Physician-in-charge, Dr Fleischman, lost only 33 per cent, whereas other treatments showed a death rate of over 70 per cent.

It is said that reduction of inflammatory fevers by homoeopathic Aconite, Gelsemium, Baptisia and Belladonna played no small part in reducing the practice of blood-letting in the early 19th century.

Since Hahneman, homoeopathy has been the object of intense professional bitterness by its opponents but since the 1968 Medicines Act (UK) provision has been made for homoeopathic treatment on the “National Health Service”. Conversion of medical opinion has been gradual and today many registered medical practitioners also use the therapy.

“It is the general theory that the process of dilution and succussion (a vigorous shaking by the hand or by a machine) “potentises” a remedy.

“To prepare. A remedy is first prepared in solution as a “mother tincture”. In the decimal system of dilution a small quantity is then diluted ten times by the addition of nine parts by volume of diluent – either alcohol or water and then shaken vigorously by hand or machine (succussion). A small quantity of this is then diluted to one tenth and succussed a second time; this process is repeated again and again, producing solutions identified as 3x, 6x, 30x according to the number of times diluted. It may even be continued a thousand times (1 M). The resulting solutions are adsorbed on to an inert tablet or granules, usually of lactose, and in this form it is claimed that they remain therapeutically active indefinitely.

“For higher dilutions the centesimal system is used, when each dilution is by 1 in 100. The resulting solutions or tablets are referred to as 3C, 6C, 12C etc according to the number of times diluted.

“When dealing with a remedy which is insoluble, e.g. Carbo Veg, the first three dilutions and succussions are done in powder form, i.e. to “3x” beyond which the remedy is sufficiently soluble for further dilutions to proceed in liquid form.

“In homoeopathy a remedy may in some cases be given in a dilution so great that no single molecule of the original substance remains. The concept of “memory laden” water implies that the effect lies in a pattern impressed on the water molecules and that this is carried over from one dilution to the next.” (John Cosh MD., FRCP)

Homoeopathic medicines can stand most tests for safety, since it is widely held that they are completely safe and non-addictive, with no side-effects. ... homoeopathy

Neurotransmitter

A chemical released from a nerve ending that transmits impulses from one neuron (nerve cell) to another neuron, or to a muscle cell. When a nerve impulse reaches a nerve ending, neurotransmitters are released from synaptic vesicles and cross a tiny gap (synapse) to reach the target cell. Here, they cause channels in the target cell to open, letting through charged particles that stimulate an impulse in the cell. Alternatively, neurotransmitters may inhibit nerve impulses.

Scores of different chemicals fulfil this function in different parts of the nervous system. Many neurotransmitters act as both neurotransmitters and hormones, being released into the bloodstream to act on distant target cells.

One of the most important neurotransmitters is acetylcholine, which causes skeletal muscles to contract when it is released by neurons connected to the muscles. Acetylcholine is also released by neurons that control the sweat glands and the heartbeat, and transmits messages between neurons in the brain and spinal cord.

Another chemical, noradrenaline (norepinephrine), aids the nervous control of heartbeat, blood flow, and the body’s response to stress. Dopamine plays an important role in parts of the brain that control movement. Serotonin is one of the main neurotransmitters found in parts of the brain concerned with conscious processes.

Another group of neurotransmitters is called the neuropeptides.

This group includes the endorphins, which are used by the brain to control sensitivity to pain.... neurotransmitter

Repolarization

n. the process in which the membrane of a nerve cell returns to its normal electrically charged state after a nerve impulse has passed. During the passage of a nerve impulse a temporary change in the molecular structure of the membrane allows a surge of ions across the membrane (see action potential). During repolarization ions diffuse back to restore the charge and the nerve becomes ready to transmit further impulses. See refractory period.... repolarization

Zwitterion

n. an ion that bears a positive and a negative charge. Amino acids can yield zwitterions.... zwitterion

Consent

n. agreement to undergo any medical treatment or to participate in medical research. Three criteria must be met for consent to be legally valid, namely that the patient must: (i) have capacity to make a choice; (ii) be provided with sufficient information (see informed consent) as to the nature of treatment, its likely consequences, and the possible effects of not having treatment; (iii) be in a position to decide voluntarily, i.e. without external pressure or influence, which may entail giving the patient time to consider the options. In addition, the patient should be informed that they can change their mind about treatment at any point. Valid consent usually provides a legal defence against the charge of *battery (trespass against the person). Claims of *negligence may be brought if the doctor discloses insufficient or inadequate information or fails to answer the patient’s questions and address his or her concerns. Consent need not be in writing, but the more invasive the treatment proposed the greater the need for evidence of consent to be recorded. Signed consent forms are commonly used for this purpose, and are legally required when recruiting a subject to a clinical trial. Valid consent is not required in an emergency or where a patient lacks capacity. The concept of *therapeutic privilege formerly provided a further exception to the requirement that patients should give valid consent, but its scope of application is now much more narrowly defined. See also assent; autonomy.... consent

Infanticide

n. (in England and Wales) under the terms of the Infanticide Act 1938, the killing of an infant by the natural mother within 12 months of birth. Where it can be shown that the woman’s balance of mind was disturbed due to childbirth and/or lactation she would not normally be charged with murder but with infanticide, which carries a much lighter sentence. As a result, it is uncommon for a mother who kills her infant child to receive a custodial sentence. Following a report from the Law Commission in 2006, there have been repeated calls for the law to be reformed so that a defence of diminished responsibility is automatically available in such cases.... infanticide

Negligence

n. failure by a health-care professional to exercise a reasonable standard of care, as defined in the UK by the *Bolam and Bolitho tests, which ask whether the care provided fell short of that of a reasonable body of professional opinion and whether actions or omissions withstand logical analysis (the determination of which falls to the court). In order to establish negligence a claimant must show that a doctor had a *duty of care, that he or she breached this duty by falling below the expected standard of care, and that foreseeable harm was caused as a result of the professional’s conduct. The standard of proof in negligence actions is that of the civil law (i.e. on the balance of probabilities). Payment of *compensation to the claimant upon proving negligence is required by the UK civil law. Rarely, doctors may be charged with the criminal offence of manslaughter by gross negligence, which must be proved according to the standards of the criminal law (beyond reasonable doubt). If convicted, the sentence for gross negligence cases is likely to be custodial.... negligence

Therapeutic Privilege

the entitlement of a doctor to withhold information from a patient when it is feared that disclosure could cause immediate and serious harm to the patient (e.g. because he or she is suffering from severe depression). In exceptional cases, the need to withhold information may be considered to override the requirement to obtain informed *consent before proceeding with treatment. In such a case therapeutic privilege could be used as a legal defence against the charge of *battery or *negligence. If doctors are intending to invoke the concept of therapeutic privilege they must be prepared to justify their decision. Furthermore, while it was once quite common for doctors to withhold bad news or upsetting information from patients for *paternalistic motives, it is now considered a breach of the patient’s *autonomy and the ethicolegal justification for invoking therapeutic privilege where a patient has *capacity is, if it exists at all, extremely limited.... therapeutic privilege

Xeroradiography

n. a type of X-ray imaging in which a picture of the body is recorded on paper rather than on film. A plate of selenium, which rests on a thin layer of aluminium oxide, is charged uniformly by passing it in front of a scorotron. As X-ray photons impinge on this, charges diffuse out in proportion to the energy content of the X-ray. An imprint is formed by the charge distribution on the plate, which attracts toner particles and is transferred to reusable paper plates. Unlike conventional X-ray imaging, xeroradiography does not require photographic developers. The technique does, however, require more radiation exposure. It was widely used in mammography prior to the advent of digital mammography.... xeroradiography



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