| FBAO | foreign-body airway obstruction |
|---|---|
| FBCOD | foreign body of the cornea, oculus dexter (right eye) |
| FBCOS | foreign body of the cornea, oculus sinister (left eye) |
| FBG | fasting blood glucose; fibrinogen; foreign body granulomatosis |
| FTBI | fractionated total body irradiation |