| AAI | acute alveolar injury; Adolescent Alienation Index; American Association of Immunologists; atrial in... |
|---|---|
| ABI | ankle/brachial index; atherothrombotic brain infarct |
| ACH | acetylcholine; achalasia; active chronic hepatitis; adrenocortical hormone; amyotrophic cerebellar h... |
| AIM | Abridged Index Medicus; acute transverse myelopathy; area of interest magnification; artificial inte... |
| ALI | acute lung injury; annual limit of intake; average lobe index |
| free thyroxine index | An arbitrary value obtained by multiplying the triiodothyronine uptake by the serum thyroxine concentration; it largely corrects for variations in thyroid-bound globulin concentration by providing a clinically valid estimate of the physiologically active free thyroxine; direct assay or laboratory measurement of free serum thyroxine yields a more accurate value. (05 Mar 2000) |
|---|---|
| length-breadth index | The ratio of the maximal breadth to the maximal length of the head, obtained by the formula: (breadth × 100)/length. Synonym: length-breadth index. (05 Mar 2000) |
| length-height index | The relation of the height to the length of the skull: (height × 100)/length. Synonym: height-length index, length-height index, transversovertical index. (05 Mar 2000) |
| leukopenic index | A significant decrease in the white blood count after ingestion of food to which a patient is hypersensitive, a count made during the normal fasting state being used as the basis for evaluation of the postprandial count. (05 Mar 2000) |