| ACTA | American Cardiology Technologists Association; automatic computerized transverse axial [scanning] |
|---|---|
| AMT | acute miliary tuberculosis; alpha-methyltyrosine; American Medical Technologists; amethopterin; amit... |
| ARRT | American Registry of Radiologic Technologists |
| ASRT | American Society of Radiologic Technologists |
| AST | allergy serum transfer; angiotensin sensitivity test; anterior spinothalamic tract; antistreptolysin... |