| AHC | academic health care; academic health center; acute hemorrhagic conjunctivitis; acute hemorrhagic cy... |
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| AHE | acute hazardous events [database]; acute hemorrhagic encephalomyelitis |
| AID | acquired immunodeficiency disease; acute infectious disease; acute ionization detector; Agency for I... |
| ALL | acute lymphoblastic leukemia; acute lymphocytic leukemia |
| ALP | acute leukemia protocol; acute lupus pericarditis; alkaline phosphatase; alveolar proteinosis; anter... |
| acute rickets | Bone changes seen in infantile scurvy, consisting of subperiosteal haemorrhage and deficient osteoid tissue formation; often used to indicate simultaneous occurrence of rickets and scurvy. Synonym: acute rickets. Hereditary hypophosphatemic rickets, with hypercalciuria, an inherited disorder in which there is a defect in renal tubular reabsorption. (05 Mar 2000) |
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| acute schizophrenia | A disorder in which the symptoms of schizophrenia occur abruptly; they may subside or become chronic over time. Synonym: acute schizophrenic episode. (05 Mar 2000) |
| acute schizophrenic episode | A disorder in which the symptoms of schizophrenia occur abruptly; they may subside or become chronic over time. Synonym: acute schizophrenic episode. (05 Mar 2000) |
| acute situational reaction | An acute emotional reaction related to extreme environmental stress. Synonym: acute situational reaction. (05 Mar 2000) |
| acute spinal cord compression | <radiology> Signs and symptoms of cord compression show progression within 24 hours or less: pain, weakness, autonomic dysfunction, sensory loss, ataxia Diagnostic considerations: Primary or secondary malignancy of epidural space or vertebrae, Trauma, Inflammatory process, Osteoarthritis REF: MacNeil BJ, Abrams HL. Brigham and Women's Hospital Handbook of Diagnostic Imaging. Chapter 35. (12 Dec 1998) |
| acute splenic tumour | Acute splenitis, enlargement, and softening of the spleen, usually due to bacteraemia or severe bacterial toxaemia. (05 Mar 2000) |
| acute stress reaction | A sudden bout of anxiety that is often accompanied by the features of hyperventilation (tingling around mouth and in fingertips, rapid breathing, faintness or fainting). (27 Sep 1997) |
| acute testicular pain | <radiology> Diagnostic considerations: Testicular torsion, Torsion of testicular appendix, Epididymo-orchitis, Scrotal abscess (12 Dec 1998) |
| acute toxicity | <pharmacology> Illness resulting from a single dose or exposure to a toxic substance. Compare: chronic toxicity. (06 May 1997) |
| acute transverse myelitis | Acute inflammation and softening of the spinal cord; involves the entire thickness of the spinal cord but of limited longitudinal extent; multiple aetiologies. (05 Mar 2000) |
| acute trypanosomiasis | A disease of humans caused by Trypanosoma brucei rhodesiense in eastern Africa from Ethiopia and Uganda south to Zimbabwe; it is clinically similar to Gambian trypanosomiasis but of shorter duration and more acute in form; patients suffer repeated episodes of pyrexia, become anaemic, and die commonly from cardiac failure. Synonym: acute African sleeping sickness, acute trypanosomiasis, East African sleeping sickness, East African trypanosomiasis. (05 Mar 2000) |
| acute tuberculosis | A rapidly fatal disease due to the general dissemination of tubercle bacilli in the blood, resulting in the formation of miliary tubercles in various organs and tissues, and producing symptoms of profound toxaemia. Synonym: acute miliary tuberculosis, disseminated tuberculosis. (05 Mar 2000) |
| acute tubular necrosis | <nephrology> A kidney disorder that results in damage to the renal tubule cells leading to acute renal failure. Acute tubular necrosis can result from any condition which deprives the kidney of oxygen (ischaemia). Acute tubular necrosis may occur as a complication of shock, trauma or sepsis. Conditions such as diabetes or liver disease can predispose people to the development of acute tubular necrosis. Certain medications (for example aminoglycosides, amphotericin B, cyclosporine) are known to cause acute tubular necrosis as a toxic side effect. Radiopaque contrast dyes, used in some radiologic procedures, may also result in acute tubular necrosis as a rare complication from contrast dye use. Acronym: ATN (13 Nov 1997) |
| acute urethral syndrome | <syndrome> This describes a clinical syndrome of dysuria (pain on urination) with sterile or low bacterial colony count culture results. Many of these patients have early or low-grade E. Coli, Staphylococcal saprophyticus or Chlamydia trachomatis infections. All are treated with antibiotics. (27 Sep 1997) |
| acute urticaria | Urticaria accompanied by slight constitutional symptoms. Synonym: acute urticaria, urticaria acuta, urticaria febrilis. (05 Mar 2000) |