| BSNA | bowel sounds normal and active |
|---|---|
| CAS | calcarine sulcus; calcific aortic stenosis; Cancer Attitude Survey; carbohydrate-active steroid; car... |
| CCFAS | compact colony-forming active substance |
| EA | early antigen; educational age; egg albumin; electric affinity; electrical activity; electroacupunct... |
| EMTALA | Emergency Medical Treatment and Active Labor Act |
| chronic toxicity | <pharmacology> Illness caused by repeated or long-term exposure to low doses of a toxic substance. Compare: acute toxicity. (09 Oct 1997) |
|---|---|
| chronic trypanosomiasis | A chronic disease of humans caused by Trypanosoma brucei gambiense in northern and sub-Saharan Africa from Senegal east to Sudan and Uganda; characterised by splenomegaly, drowsiness, an uncontrollable urge to sleep, and the development of psychotic changes; basal ganglia and cerebellar involvement commonly lead to chorea and athetosis; the terminal phase of the disease is characterised by wasting, anorexia, and emaciation that gradually leads to coma and death, usually from intercurrent infection. Synonym: chronic African sleeping sickness, chronic trypanosomiasis, West African sleeping sickness, West African trypanosomiasis. (05 Mar 2000) |
| chronic ulcer | A longstanding ulcer with fibrous scar tissue in the floor of the ulcer. (05 Mar 2000) |
| chronic ulcerative proctitis | Probably a variant of ulcerative colitis involving the rectum; some cases progress to involve the remainder of the colon as well. Synonym: chronic ulcerative proctitis. (05 Mar 2000) |
| chronic urticaria | A form of urticaria in which the wheals recur frequently, or persist. Synonym: urticaria chronica. (05 Mar 2000) |
| chronic venous insufficiency | <cardiology> A condition in which the vein do not channel the flow of blood adequately. most often this condition is seen in the veins of the lower extremities. Symptoms include leg swelling, leg pain and muscle cramps. This condition can predispose to venous thrombosis. (27 Sep 1997) |
| chronic vertigo | A condition in which attacks of vertigo occur in rapid succession. Synonym: chronic vertigo. (05 Mar 2000) |
| hepatitis b, chronic | An inflammatory disease of the liver caused by hepatitis b virus and lasting six months or more. (12 Dec 1998) |
| hepatitis c, chronic | An inflammatory disease of the liver caused by hepatitis c virus lasting six months or more. (12 Dec 1998) |
| hepatitis, chronic | A collective term for a clinical and pathological syndrome which has several causes and is characterised by varying degrees of hepatocellular necrosis and inflammation. Specific forms of chronic hepatitis include autoimmune hepatitis (hepatitis, autoimmune), chronic hepatitis b (hepatitis b, chronic), chronic hepatitis c (hepatitis c, chronic), chronic hepatitis d (hepatitis d, chronic), indeterminate chronic viral hepatitis, cryptogenic chronic hepatitis and drug-related chronic hepatitis (hepatitis, chronic, drug-induced). (12 Dec 1998) |
| hepatitis, chronic, drug-induced | An inflammatory disease of the liver, lasting six months or more, and caused by an adverse drug effect. The adverse effect may result from a direct toxic effect of a drug or metabolite, or an idiosyncratic response to a drug or metabolite. The clinical and histological changes can mimic viral or autoimmune hepatitis. (12 Dec 1998) |
| hepatitis d, chronic | Inflammatory disease of the liver caused by hepatitis d virus in conjunction with hepatitis b virus and lasting six months or more. (12 Dec 1998) |
| hospitals, chronic disease | Hospitals which provide care to patients with long-term illnesses. (12 Dec 1998) |
| stricture of the oesophagus, chronic | A narrowing or closure of the normal opening of the swallowing tube leading to the stomach, usually caused by scarring from acid irritation. A common complication of chronic gastroesophageal reflux disease (gerd). Several procedures are available for stretching (dilating) the strictures without having to resort to surgery. One of the procedures involves placing a deflated balloon across the stricture at the time of endoscopy. The balloon is then inflated, thereby opening the narrowingcaused by the stricture. Another method involves inserting tapered dilators of different sizes through the mouth into the oesophagus to dilate the stricture. (12 Dec 1998) |
| systemic-onset juvenile chronic arthritis | See: Systemic-onset juvenile rheumatoid arthritis (still's disease). (12 Dec 1998) |