| ASPA | American Society of Physician Analysts; American Society of Podiatric Assistants; aspartoacylase |
|---|---|
| FACHA | Fellow of the American College of Health Administrators; Fellow of the American College of Hospital ... |
| FAPA | Fellow of the American Psychiatric Association; Fellow of the American Psychoanalytical Association |
| AFIP | Armed Forces Institute of Pathology |
| AHI | active hostility index; Animal Health Institute; apnea-plus-hypopnea index |