| FB | Foreign Body |
|---|---|
| FB | fasting blood [sugar]; feedback; fiberoptic bronchoscopy; fingerbreadth; foreign body; Fusobacterium |
| FBA | fecal bile acid |
| FBAO | foreign-body airway obstruction |
| FBC | full blood count |
| FBCOD | foreign body of the cornea, oculus dexter (right eye) |
| FBCOS | foreign body of the cornea, oculus sinister (left eye) |
| FBCP | familial benign chronic pemphigus |
| FBD | functional bowel disorder |
| FbDP | fibrin degradation products |