| B/K | Below Knee | - | Medical(slang) |
| B/K | Below Knee | - | Medical(slang) |
| BA | Breathing Apparatus | - | Medical(slang) |
| BAC | Blood Alcohol Content | - | Medical(slang) |
| BBP | Blood-Borne Pathogen | - | Medical(slang) |
| BBS | Bilateral Breath Sounds | - | Medical(slang) |
| BE | Barium Enema | - | Medical(slang) |
| BG | Blood Glucose | - | Medical(slang) |
| BGL | Blood Glucose Level | - | Medical(slang) |
| BI | Brain Injury | - | Medical(slang) |
| BID | Twice A Day | - | Medical(slang) |
| BILAT | Bilateral | - | Medical(slang) |
| BILAT | Bilateral | - | Medical(slang) |
| BM | Bowel Movement Or Breast Milk | - | Medical(slang) |
| BMI | Body Mass Index | - | Medical(slang) |
| BP | Blood Pressure | - | Medical(slang) |
| BPH | Benign Prostatic Hypertrophy | - | Medical(slang) |
| BPV | Benign Positional Vertigo | - | Medical(slang) |
| BRM | Biologic Response Modifiers | - | Medical(slang) |
| BRP | Bathroom Privileges | - | Medical(slang) |
| BRT | Body Restorative Therapy | - | Medical(slang) |
| BS | Bowel Sounds | - | Medical(slang) |
| BSA | Body Surface Area | - | Medical(slang) |
| BSA | Body Surface Area | - | Medical(slang) |
| BSE | Breast Self Examination | - | Medical(slang) |
| BSI | Bodily Substance Isolation | - | Medical(slang) |
| BSL | Blood Sugar Level | - | Medical(slang) |
| BT | Bowel Tones | - | Medical(slang) |
| BUN | Blood Urea Nitrogen | - | Medical(slang) |
| BZD | BenZoDiazepine | - | Medical(slang) |
