| parent | Porphyrins | LP14913-5 |
| child | Heptacarboxylate/Creatinine | LP286188-0 |
| child | Heptacarboxylate | Plasma | Chemistry - non-challenge | LP386447-9 |
| child | Heptacarboxylate | Stool | Chemistry - non-challenge | LP386448-7 |
| child | Heptacarboxylate | Urine | Chemistry - non-challenge | LP386449-5 |
| STATUS | ACTIVE |
| PartDisplayName | en-US | Heptacarboxylate |
| DisplayName | en-US | Heptacarboxylate |
LOINC Version: 2.81