| Blx | bleeding time |
|---|---|
| BT | base of tongue; bedtime; bitemporal; bitrochanteric; bladder tumor; Blalock-Taussig [shunt]; bleedin... |
| BTB | breakthrough bleeding; bromthymol blue |
| BUO | bleeding of undetermined origin, bruising of undetermined origin |
| DFB | dinitrofluorobenzene; dysfunctional bleeding |