| CAO | chronic airway obstruction; coronary artery obstruction |
|---|---|
| BO | Bachelor of Osteopathy; base of prism out; behavior objective; belladonna and opium; body odor; bowe... |
| LBO | large bowel obstruction |
| IBD | inflammatory bowel disease; irritable bowel disease |
| NBM | no bowel movement; normal bone marrow; normal bowel movement; nothing by mouth |