| parent | Barbital | LP16042-1 | 
| child | Barbital [Mass/volume] in Serum or Plasma | 3370-4 | 
| child | Barbital [Presence] in Serum or Plasma | 14623-3 | 
| child | Barbital [Moles/volume] in Serum or Plasma | 32050-7 | 
| STATUS | NotStated | 
| PartDisplayName | en-US | Barbital | Serum or Plasma | Drug toxicology | 
LOINC Version: 2.78