| A | B |
|---|
| AABB | american association of blood banks |
| AACCN | american academy of critical care nurses |
| AAD | american academy of dermatology |
| AADGP | american academy of dental group practice |
| AAFP | american academy of family physicians |
| AAIN | american academy of industrial nurses |
| AAMI | association for the advancement of medical instrumentation |
| AAN | american academy of nursing |
| AAO | american academy of ophthalmology or optomety |
| AAOS | american academy of orthopaedic surgeons |
| AAP | american academy of pediatrics |
| ABEM | american boarded i emergency medicine |
| ABIM | american board of internal medicine |
| ABMS | american boarded in medical specialties |
| ACCE | american college of clinical engineering |
| ACOs | accountable care organization |
| ACCP | american college of chest physicians |
| ACEP | american college of emergency physicians |
| ACGME | accreditation council for graduate medical education |
| ACOG | american college of obstetics and gynecology |
| ACO | accountable care organization |
| ACP | advanced care paramedic (Canada) |
| ACR | american college of radiologists, and american college of rheumatology |
| ACS | american cancer society |
| ACP | american college of physicians |
| ACS | american college surgeons |
| ADA | american dental association and american diabetes association |
| A&E | accident and emergency |
