| SBNW | single-breath nitrogen washout |
|---|---|
| SUN | standard unit of nomenclature; serum urea nitrogen |
| TAN | total adenine nucleotide; total ammonia nitrogen |
| TBN | bacillus emulsion; total body nitrogen |
| TEN | total enteral nutrition; total excretory nitrogen; toxic epidermal necrolysis; transepidermal neuros... |