Shock, electric Health Dictionary

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Shock, Electric: From 1 Different Sources

The sensation caused by an electric current passing through the body, and its effects.

A current of sufficient size and duration can cause loss of consciousness, cardiac arrest, respiratory arrest, burns, and tissue damage.

(See also electrical injury.)

Health Source: BMA Medical Dictionary
Author: The British Medical Association

Shock

Collapse of the circulation resulting in inadequate tissue perfusion to the body cells.... shock

Septic Shock

A dangerous disorder characterised by a severe fall in blood pressure and damage to the body tissues as a result of SEPTICAEMIA. The toxins from the septicaemia cause widespread damage to tissue, provoke clotting in small blood vessels, and seriously disturb the circulation. The kidneys, lungs and heart are particularly affected. The condition occurs most commonly in people who already have a chronic disease such as cancer, CIRRHOSIS of the liver or DIABETES MELLITUS. Septic shock may also develop in patients with immunode?ciency illnesses such as AIDS (see AIDS/HIV). The symptoms are those of septicaemia, coupled with those of SHOCK: cold, cyanotic limbs; fast, thready pulse; and a lowered blood pressure. Septic shock requires urgent treatment with ANTIBIOTICS, intravenous ?uids and oxygen, and may require the use of drugs to maintain blood pressure and cardiac function, arti?cial ventilation and/or renal DIALYSIS.... septic shock

Toxic Shock Syndrome

First described in 1978, this disorder is characterised by high fever, diarrhoea, SHOCK and a rash. It is frequently associated with the use of tampons (see TAMPON), but has occasionally been reported in men. The syndrome may also be linked to the use of contraceptives such as the diaphragm, cap and sponge (see under CONTRACEPTION), and skin wounds or infections may also be a cause. The disease is due to a staphylococcal toxin (see STAPHYLOCOCCUS; TOXINS). Treatment consists of supportive measures to combat shock and eradication of the staphylococcus by ANTIBIOTICS. The design of tampons has been improved. Recurrence of the disorder has been reported and women who have had an episode should stop using tampons and vaginal contraceptives.... toxic shock syndrome

Insulin Shock

A disorder in which the body produces excess INSULIN, which then reduces the amount of glucose in the blood (HYPOGLYCAEMIA). Treatment is with glucose or GLUCAGON. Untreated, the patient goes into a COMA and dies.... insulin shock

Shock Therapy

See ELECTROCONVULSIVE THERAPY (ECT).... shock therapy

Anaphylactic Shock

See: SERUM SICKNESS. ... anaphylactic shock

Cardiogenic Shock

The result of myocardial infarction. Reduction in contractility and output of the heart.

Symptoms: low blood pressure, reduced urinary output, water in the lungs, etc. See: MYOCARDITIS. ... cardiogenic shock

Transcutaneous Electrical Nerve Stimulation

See TENS.... transcutaneous electrical nerve stimulation

Electrical Injuries

These are usually caused by the passage through the body of an electric current of high voltage owing to accidental contact with a live wire or to a discharge of lightning. The general effects produced are included under the term electric shock, but vary greatly in degree. The local effects include spasmodic contraction of muscles, fracture of bones, and in severe cases more or less widespread destruction of tissues which may amount simply to burns of the skin or may include necrosis of masses of muscle and internal organs. Fright due to the unexpectedness of the shock, and pain due to the sudden cramp of muscles, are the most common symptoms and in most cases pass o? within a few minutes. In more severe cases – especially when the person has remained in contact with a live wire for some time, or has been unable to let go of the electrical contact owing to spasmodic contraction of the muscles – the effects are more pronounced and may include concussion or compression of the brain (see BRAIN, DISEASES OF). In still more severe cases, death may ensue either from paralysis of the respiration or stoppage of the heart’s action. If prompt measures are taken for treatment, the victim can often be resuscitated.

In Britain there are an average of 110 deaths a year from electrocution, half of these occurring in the home.

Treatment No electrical apparatus or switch should be touched by anyone who is in metallic contact with the ground, such as through a metal pipe, especially, for example, from a bath. The ?rst action is to break the current. This can sometimes be done by turning o? a switch. If the victim is grasping or in contact with a live wire, the contact may be severed with safety only by someone wearing rubber gloves or rubber boots; but as these are not likely to be immediately available, the rescuer’s hands may be protected by a thick wrapping of dry cloth, or the live wire may be hooked or pushed out of the way with a long wooden stick such as a broom-handle. If the injured person is unconscious, and especially if breathing has stopped, arti?cial respiration should be applied as described in APPENDIX 1: BASIC FIRST AID – Electrocution. When the patient begins to breathe again, he or she must be treated for shock and professional help obtained urgently.... electrical injuries

Shock Lung

See ACUTE RESPIRATORY DISTRESS SYNDROME (ARDS).... shock lung

Transcutaneous Electrical Nerve Stimulation (tens)

A method of electrical stimulation that is being used for the relief of PAIN, including that of MIGRAINE, NEURALGIA and phantom limbs (see AMPUTATION). Known as TENS, its mode of action appears to have some resemblance to that of ACUPUNCTURE. Several controlled trials suggest that it provides at least a modicum of relief of pain after operations, thereby reducing the amount of ANALGESICS that may be called for.... transcutaneous electrical nerve stimulation (tens)

Electric Shock Treatment

See ECT.... electric shock treatment

Shell Shock

See post-traumatic stress disorder.... shell shock

Acoustic Shock

an adverse reaction to a sudden unexpected noise (an *acoustic incident). The condition is characterized by symptoms that may include pain, dizziness, tinnitus, anxiety, and depression. It is not usually associated with permanent reduction of hearing, in comparison to noise-induced hearing loss (see deafness).... acoustic shock

Nervous Shock

Non-medical term for nervous collapse. “All gone to pieces” syndrome following a period of abnormal stress or shock. Nervous breakdown. Psychiatric illness. Posttraumatic stress disorder.

Alternatives. Betony, Black Cohosh, Hops, Lady’s Slipper, Mistletoe, Oats, Skullcap, Valerian.

Tea. Formula. Equal parts: Skullcap, Mistletoe, Valerian. 1 heaped teaspoon to each cup water gently simmered 10 minutes. Dose: half-1 cup thrice daily.

Formula. Equal parts: Hops, Rosemary, Valerian. Dose: Liquid Extracts: 1 teaspoon. Tinctures: 2 teaspoons. Powders: 500mg (two 00 capsules or one-third teaspoon). Thrice daily.

Supplements. B-complex, B12, B6, E. Magnesium, Dolomite. Calcium. ... nervous shock

Electrical Injury

Damage to the tissues caused by the passage of an electric current through the body and by its associated heat release. The internal tissues of the body, being moist and salty, are good conductors of electricity. Dry skin provides a high resistance to current flow, but moist skin has a low resistance and thus allows a substantial current to flow into the body. Serious injury or death from domestic voltage levels is thus more likely to occur in the presence of water.

All except the mildest electric shocks may result in unconsciousness. Alternating current (AC) is more dangerous than direct current (DC) because it causes sustained muscle contractions, which may prevent the victim from letting go of the source of the current. A current as small as 0.1 of an amp passing through the heart can cause a fatal arrhythmia. The same current passing through the brainstem may cause the heart to stop beating and breathing to cease. Larger currents, generated by high voltages, may cause charring of tissues, especially where the current enters and exits the body. ... electrical injury

Episodic Cranial Sensory Shock

see exploding head syndrome.... episodic cranial sensory shock

Pulseless Electrical Activity

(electromechanical dissociation) the appearance of normal-looking complexes on the electrocardiogram that are, however, associated with a state of *cardiac arrest. It is usually caused by large pulmonary emboli (see pulmonary embolism), *cardiac tamponade, tension *pneumothorax, severe disturbance of body salt levels, severe haemorrhage, or hypothermia causing severe lack of oxygen to the heart muscle.... pulseless electrical activity

Spinal Shock

a state of *shock accompanied by temporary paralysis of the lower extremities that results from injury to the spine and is often associated with *ileus. If the spinal cord is transected, permanent motor paralysis persists below the level of spinal-cord division.... spinal shock

Streptococcal Toxic Shock Syndrome

a bacterial disease characterized by fever, shock, and multiple organ failure. It is similar to the *toxic shock syndrome caused by staphylococci, but in these cases the infecting organisms are *Streptococcus Type A bacteria. See also necrotizing fasciitis.... streptococcal toxic shock syndrome

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