| parent | Labetalol | LP16170-0 | 
| child | Labetalol [Mass/volume] in Serum or Plasma | 3704-4 | 
| child | Labetalol [Presence] in Serum or Plasma | 17040-7 | 
| child | Labetalol [Moles/volume] in Serum or Plasma | 55547-4 | 
| STATUS | NotStated | 
| PartDisplayName | en-US | Labetalol | Serum or Plasma | Drug toxicology | 
LOINC Version: 2.78