| anti-PNM Ab | anti-peripheral nerve myelin antibody |
|---|---|
| ANuA | antinuclear antibody |
| ARA | Academy of Rehabilitative Audiometry; acetylene reduction activity; American Rheumatism Association;... |
| ASA | acetylsalicylic acid; active systemic anaphylaxis; Adams-Stokes attack; American Society of Anesthes... |
| ASMA | antismooth muscle antibody |