| LUMD | lowest usual maintenance dose |
|---|---|
| LUMO | lowest unoccupied molecular orbital |
| LUO | left ureteral orifice |
| LUOQ | left upper outer quadrant |
| LUP | left ureteropelvic |
| LUPV | left upper pulmonary vein |
| LUQ | Left Upper Quadrant; 좌측상부 4분의 1 |
| LUQ | left upper quadrant |
| LUSB | left upper scapular border; left upper sternal border |
| LUT | look-up table |