| N/50 | fiftieth-normal [solution] |
|---|---|
| NKHS | nonketotic hyperosmolar syndrome; normal Krebs-Henseleit solution |
| N/S | normal saline [solution] |
| AN | acanthosis nigricans; acne neonatorum; acoustic neuroma; adult, normal; ala nasi; amyl nitrate; aneu... |
| NBM | no bowel movement; normal bone marrow; normal bowel movement; nothing by mouth |