| NKHS | nonketotic hyperosmolar syndrome; normal Krebs-Henseleit solution |
|---|---|
| nl | nanoliter; normal [value] |
| NLA | National Leukemia Association; neuroleptoanesthesia; normal lactase activity |
| NLDL | normal low-density lipoprotein |
| NLS | Names Learning Test; Neu-Laxova syndrome; nonlinear least squares; normal lymphocyte supernatant |