| parent | Metanephrine.free | LP31520-7 | 
| child | Metanephrine.free/Creatinine | Serum or Plasma | Chemistry - non-challenge | LP434125-3 | 
| child | Metanephrine.free/Creatinine | Urine | Chemistry - non-challenge | LP381253-6 | 
| STATUS | ACTIVE | 
| PartDisplayName | en-US | Metanephrine.free/Creatinine | 
| DisplayName | en-US | Metanephrine.free/Creatinine | 
LOINC Version: 2.78