Negative Symptoms: From 1 Different Sources
(in psychiatry) symptoms of schizophrenia characterized by a deficiency in or absence of some aspect of functioning, such as social withdrawal, loss of initiative, and blunted affect. Compare positive symptoms.
A negative test result for a condition that is, in fact, present.... false negative
Gram’s Method is a staining procedure that separates bacteria into those that stain (positive) and those that don’t (negative). Gram-positive bugs cause such lovely things as scarlet fever, tetanus, and anthrax, while some of the gram negs can give you cholera, plague, and the clap. This is significant to the microbiologist and the pathologist; otherwise I wouldn’t worry. Still, knowing the specifics (toss in anaerobes and aerobes as well), you can impress real medical professionals with your knowledge of the secret, arcane language of medicine.... gram-positive/negative
Unpleasant physical and mental symptoms that occur when a person stops using a drug or substance on which he or she is dependent (see DEPENDENCE). The symptoms include tremors, sweating, and vomiting which are reversed if further doses are given. Alcohol and hard drugs, such as morphine, heroin, and cocaine, are among the substances that induce dependence, and therefore withdrawal symptoms, when stopped. Amphetamines and nicotine are other examples.... withdrawal symptoms
The experiences of a patient as communicated to a doctor, for example, pain, weakness, cough. They may or may not be accompanied by con?rmatory CLINICAL SIGNS.... clinical symptoms
The probability that a person with a negative test is free of the disease and is not a false negative.... predictive value negative
(LUTS) symptoms occurring during urine storage, voiding, or immediately after. These include *frequency, *urgency, *nocturia, *incontinence, *hesitation, *intermittency, *terminal dribble, *dysuria, and *postmicturition dribble. These symptoms used to be known as prostatism. Sometimes they are due to benign prostatic hyperplasia (see prostate gland), but they may be due to *detrusor overactivity, excessive drinking, diuresis due to poorly controlled diabetes, or a urethral stricture.... lower urinary tract symptoms
a physiological loop for the control of hormone production by a gland. High levels of a circulating hormone act to reduce production of the releasing factors triggering its own production, i.e. they have a negative *feedback on these trigger factors. As circulating levels of the hormone fall, the negative feedback is reduced and the releasing factor starts to be produced again, allowing the hormone level to rise again.... negative feedback loop
(in psychiatry) symptoms of schizophrenia characterized by a distortion of some aspect of functioning, such as delusions, hallucinations, or disordered speech. Compare negative symptoms.... positive symptoms
symptoms of *schizophrenia first classified by German psychiatrist Kurt Schneider (1887–1967) in 1938. First-rank symptoms were considered by Schneider to be particularly indicative of schizophrenia; they include all forms of *thought alienation, *delusional perception, *passivity, and third-person auditory *hallucinations in the form of either a running commentary or voices talking about the patient among themselves. Some schizophrenic patients never exhibit first-rank symptoms or only experience them in some psychotic episodes. They may also occur in *mania. Second-rank symptoms are common symptoms of schizophrenia but also often occur in other forms of mental illness. They include *delusions of reference, paranoid and persecutory *delusions, and second-person auditory hallucinations.... schneiderian first- and second-rank symptoms
an arthritis in which rheumatoid factor or anticitrullinated protein antibodies (ACPA) are not present in the serum. See also spondyloarthropathy.... sero-negative arthritis
subjective sensations experienced by women around the time of the *menopause, often described as explosions of heat (hot flushes), mostly followed by profuse sweating and sometimes preceded by an undetermined sensation with waking at night. Objective signs are sudden reddening of the skin on the head, neck, and chest and profuse sweating. Physiological changes include peripheral vasodilatation, *tachycardia with normal blood pressure, and raised skin temperature with normal body temperature.... vasomotor symptoms
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