| AHT | aggregation half time; antihyaluronidase titer; augmented histamine test; autogenous hamster tumor |
|---|---|
| AITT | arginine insulin tolerance test; augmented insulin tolerance test |
| ATN | acute tubular necrosis; augmented transition network |
| AV | Adriamycin and vincristine; air velocity; allergic vasculitis; anteroventral; anteversion; anticipat... |
| PS test | Pancreozymin-Secretion test = combined secretin-CCK test |