| BI | background interval; bacterial or bactericidal index; base-in [prism]; basilar impression; Billroth ... |
|---|---|
| BU | base of prism up; Bethesda unit; blood urea; Bodansky unit; bromouracil; burn unit |
| DPB | days post-burn; diffuse panbronchiolitis |
| ISBI | International Society for Burn Injuries |
| LA50 | total body surface area of burn that will kill 50% of patients (lethal area) |