| A | B |
| AGD | Academy of General Dentistry |
| AHA | American Heart Association |
| AMA | American Medical Association |
| AMSA | American Medical Student Association |
| ANNA | American Nephrology Nurses’ Association |
| ANSI | American National Standards Institute |
| APA | American Psychiatric Association |
| ARA | American Rheumatological Association |
| ARRA | American Recovery and Reinvestment Act of 2009 |
| ARRT | American Registry of Radiologic Technologists |
| ASCP | (1) American Society for Clinical Pathology (2) American Society of Consultant Pharmacists |
| ASHA | American Speech-Language-Hearing Association |
| ASL | American Sign Language |
| ASMSO | American Society of Medication Safety Officers |
| ASPS | American Society of Plastic Surgeons |
| ASRT | American Society of Radiologic Technologists |
| ASSH | American Society for Surgery of the Hand |
| BMET | Biomedical Equipment Technician |
| BIPA | Benefits Improvement and Protection Act |
| BWICU | Burn Wound Intensive-Care Unit |
| CAD | Coronary Artery Disease |
| CAMTS | Commission on Accreditation of Medical Transport Systems |
| CASH | Combat Army Surgical Hospital |
| CAP | College of American Pathologists |
| CASLPO | College of Audiologists and Speech-Language Pathologists of Ontario |