| parent | Small molecules | LP31415-0 | 
| child | 2-Ketobutyrate/Creatinine | LP284706-1 | 
| child | 2-Ketobutyrate | Serum or Plasma | Chemistry - non-challenge | LP434655-9 | 
| STATUS | ACTIVE | 
| PartDisplayName | en-US | 2-Ketobutyrate | 
| DisplayName | en-US | 2-Ketobutyrate | 
LOINC Version: 2.81