| parent | Narcotic antagonists | LP31478-8 |
| child | 6-Beta naltrexone | LP18094-0 |
| child | Naltrexone | Saliva | Drug toxicology | LP390060-4 |
| child | Naltrexone | Serum or Plasma | Drug toxicology | LP390061-2 |
| child | Naltrexol | LP199601-8 |
| child | Naltrexone cutoff | LP229086-6 |
| child | Naltrexone | Urine | Drug toxicology | LP390062-0 |
| child | Naltrexone/Creatinine | LP286613-7 |
| PartDisplayName | en-US | Naltrexone |
| DisplayName | en-US | Naltrexone |
LOINC Version: 2.77
FHIR