| HSE | herpes simplex encephalitis; hemorrhagic shock and encephalopathy |
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| HSES | hemorrhagic shock-encephalopathy syndrome |
| HSF | heat shock factor; hepatocyte stimulatory factor; histamine sensitizing factor; human serum esterase... |
| HSP | Health Systems Plan; heat shock protein; hemostatic screening profile; Henoch-Schonlein purpura; her... |
| hsp | heat shock protein [gene] |
| high-energy shock waves | Compression waves of large amplitude, across which density, pressure, and particle velocity change drastically. (12 Dec 1998) |
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| histamine shock | The shock state produced in animals by the injection of histamine; characterised by bronchiolar spasm in the guinea pig and constriction of hepatic veins in the dog. (05 Mar 2000) |
| septic shock | <microbiology> Condition of clinical shock caused by endotoxin in the blood. A serious complication of severe burns and abdominal wounds, frequently fatal. Part of the problem seems to be due to increased leucocyte adhesiveness, which leads to massive sequestration of neutrophils in the lung, increased vascular permeability and acute respiratory distress syndrome. (11 Jan 1998) |
| serum shock | Anaphylactic or anaphylactoid shock caused by the injection of antitoxic or other foreign serum. (05 Mar 2000) |
| shock | 1. <psychiatry> A sudden disturbance of mental equilibrium. 2. <cardiology> A condition of profound haemodynamic and metabolic disturbance characterised by failure of the circulatory system to maintain adequate perfusion of vital organs, it may result from inadequate blood volume (hypovolaemic shock), inadequate cardiac function (cardiogenic shock) or inadequate vasomotor tone (neurogenic shock, septic shock). (18 Nov 1997) |
| shock antigen | An antigen capable of producing anaphylactic shock in an animal that has been sensitised to it. (05 Mar 2000) |
| shock, cardiogenic | Shock caused by heart failure. The heart fails to pump blood effectively. For example, a heart attack (a myocardial infarction) can cause an abnormal ineffectual heart beat (an arhythmia) with very slow, rapid, or irregular contractions of the heart, impairing the heart's ability to pump blood, lowering the volume of blood going to vital organs. Cardiogenic shock can also be due to drugs that reduce heart function or an abnormally low level oxygen in the blood (hypoxaemia) caused, for instance, by lung disease. Whatever be the cause, blood vessels constrict and adrenalin-like substances are secreted into the bloodstream, increasing the heart rate. Treatment of cardiogenic shock is aimed at improving the heart's function. Shock after a heat attack is extremely serious. The mortality rate is over 80%. (12 Dec 1998) |
| shock, hypovolaemic | Shock due to a decrease in blood volume. This is the 1 cause of shock. It can be due to loss of blood from bleeding, loss of blood plasma through severe burns, and dehydration. The treatment, first and foremost, is prompt intravenous administration of fluid. (12 Dec 1998) |
| shock index | The quotient of the cardiac rate divided by the systolic blood pressure; normally approximately 0.5, but in shock (e.g., rising pulse rate with falling blood pressure), the index may reach 1.0. (05 Mar 2000) |
| shock lung | In shock, the development of oedema, impaired perfusion, and reduction in alveolar space so that the alveoli collapse. Synonym: pump lung, wet lung, white lung. (05 Mar 2000) |
| shock, psychologic | Trauma due to psychological events, as in shell shock (now known as posttraumatic stress disorder). (12 Dec 1998) |
| shock, septic | Shock due to circulatory insufficiency caused most commonly by gram-negative bacteraemia. It is less often the result of the persistent presence of other micro-organisms in the blood (fungaemia, viraemia); in rare instances, it is caused by gram-positive organisms, but with different symptomatology. (12 Dec 1998) |
| shock, surgical | Shock that occurs during or after surgical operation. (12 Dec 1998) |
| shock therapy | See: electroshock therapy. (05 Mar 2000) |
| shock, toxic | See Syndrome, toxic shock. (12 Dec 1998) |