| BSU | Bartholin, Skene, urethral [glands]; basic structural unit; British standard unit |
|---|---|
| BTLS | basic trauma life support |
| EMT-A | emergency medical technician-ambulance; emergency medical technician providing basic life support or... |
| EMT-B | basic emergency medical technician |
| EMT-D | emergency medical technician providing basic life support or defibrillation |