| TAT | tetanus antitoxin; thematic apperception test; thematic aptitude test; thrombin-antithrombin complex... |
|---|---|
| AAROM | active assertive range of motion; active-assisted range of motion |
| AS | acetylstrophanthidin; acidified serum; acoustic schwannoma; acoustic stimulation; active sarcoidosis... |
| Ang GR | angiotensin generation rate |
| F1, | F2 etc. first, second, etc., filial generation |