| LGTI | lower genital tract infection |
|---|---|
| LOT | lateral olfactory tract; left occipitotransverse [fetal position] |
| LRT | local radiation therapy; long terminal repeat; lower respiratory tract |
| LST | lateral spinothalamic tract; left sacrotransverse [fetal position]; life-sustaining treatment |
| LVOH | left ventricle outflow [tract] height |