| LO | linguo-occlusal |
|---|---|
| lo cal | low calorie |
| lo calc | low calcium |
| lo CHO | low carbohydrate |
| lo chol | low cholesterol |
| lo k | low potassium |
| lo Na | low sodium |
| LOA | Left Occipito-Anterior |
| LOA | leave of absence; Leber optic atrophy; left occipitoanterior [fetal position] |
| LOC | Loss Of Consciousness |