| parent | Phenytoin.total | LP18627-7 |
| child | Phenytoin.total/Phenytoin.free | Serum or Plasma | Drug toxicology | LP390833-4 |
| STATUS | ACTIVE |
| PartDisplayName | en-US | Phenytoin.total/Phenytoin.free |
| DisplayName | en-US | Phenytoin.total/Phenytoin.free |
LOINC Version: 2.81