| parent | Caffeine | LP16057-9 |
| child | Caffeine [Mass/volume] in Serum or Plasma | 3422-3 |
| child | Caffeine [Moles/volume] in Serum or Plasma | 25361-7 |
| child | Caffeine [Mass/volume] in Serum or Plasma --trough | 74919-2 |
| STATUS | NotStated |
| PartDisplayName | en-US | Caffeine | Serum or Plasma | Drug toxicology |
LOINC Version: 2.78