| parent | Barbiturates | LP14546-3 |
| child | Butalbital cutoff | LP227849-9 |
| child | Butalbital | Blood | Drug toxicology | LP390680-9 |
| child | Butalbital | Gastric fluid | Drug toxicology | LP390681-7 |
| child | Butalbital/Creatinine | LP285181-6 |
| child | Butalbital | Hair | Drug toxicology | LP390682-5 |
| child | Butalbital | Meconium | Drug toxicology | LP390683-3 |
| child | Butalbital | Saliva | Drug toxicology | LP390684-1 |
| child | Butalbital | Serum or Plasma | Drug toxicology | LP390685-8 |
| child | Butalbital | Serum, Plasma or Blood | Drug toxicology | LP390686-6 |
| child | Butalbital | Stool | Drug toxicology | LP390687-4 |
| child | Butalbital | Umbilical cord tissue | Drug toxicology | LP426640-1 |
| child | Butalbital | Urine | Drug toxicology | LP390688-2 |
| child | Butalbital | Vitreous fluid | Drug toxicology | LP390689-0 |
| child | Butalbital | XXX | Drug toxicology | LP390690-8 |
| parent | Barbiturates | LP14546-3 |
| child | Butalbital | Dose | Drug doses | LP392335-8 |
| PartDisplayName | en-US | Butalbital |
| DisplayName | en-US | Butalbital |
LOINC Version: 2.77
FHIR