| parent | Nucelotides/sides and derivatives | LP31405-1 |
| child | Guanine/Creatinine | LP286134-4 |
| child | Guanine | Cerebral spinal fluid | Chemistry - non-challenge | LP383506-5 |
| child | Guanine | Serum or Plasma | Chemistry - non-challenge | LP383507-3 |
| PartDisplayName | en-US | Guanine |
| DisplayName | en-US | Guanine |
LOINC Version: 2.77
FHIR