| parent | Antihypertensives | LP31453-1 |
| child | hydrALAZINE | Serum or Plasma | Drug toxicology | LP389237-1 |
| child | hydrALAZINE | Urine | Drug toxicology | LP389238-9 |
| STATUS | ACTIVE |
| PartDisplayName | en-US | hydrALAZINE |
| DisplayName | en-US | hydrALAZINE |
LOINC Version: 2.81