| parent | Protoporphyrin | LP15839-1 |
| child | Protoporphyrin Free | Blood | Chemistry - non-challenge | LP386511-2 |
| child | Protoporphyrin Free | Red Blood Cells | Chemistry - non-challenge | LP386512-0 |
| STATUS | ACTIVE |
| PartDisplayName | en-US | Protoporphyrin.free |
| DisplayName | en-US | Protoporphyrin Free |
LOINC Version: 2.78