| parent | 4-Hydroxyphenylacetate | LP18423-1 | 
| child | 4-Hydroxyphenylacetate/Creatinine | Urine | Drug toxicology | LP388098-8 | 
| STATUS | ACTIVE | 
| PartDisplayName | en-US | 4-Hydroxyphenylacetate/Creatinine | 
| DisplayName | en-US | 4-Hydroxyphenylacetate/Creatinine | 
LOINC Version: 2.78