| Abbreviation | Definition |
|---|---|
| LAM | Lactational Amenorrhea Method |
| LAM | Laminectomy |
| LANC | Long Arm Navicular Cast |
| LAP | Laparotomy |
| LAP | Left Atrial Pressure |
| LAP | Low Age Profile |
| LAR | Long Acting Release |
| LARC | long acting reversible contraception |
| LAT | Last Action Type |
| LAT | Lidocaine, Adrenaline and Tetracaine (a topical anesthetic) |
| LAV | Lymphadenopathy Associated Virus |
| LB | Large Bowel |
| LB | Large Breasts |
| LBB | Left Bundle Branch |
| LBB | Low back bending |
| LBBB | Left Bundle Branch Block |
| LBCD | Left Border Of Cardiac Dullness |
| LBM | Lean Body Mass |
| LBO | Large Bowel Obstruction |
| LBP | Low Back Pain |