| parent | Thyroxine | LP15900-1 |
| child | Thyroxine (T4) [Mass/volume] in Serum or Plasma | 3026-2 |
| child | Thyroxine (T4) [Mass/volume] in Serum or Plasma by Immunoassay | 83119-8 |
| child | Thyroxine (T4) [Mass or Moles/volume] in Serum or Plasma | 35226-0 |
| child | Thyroxine (T4) [Moles/volume] in Serum or Plasma | 14921-1 |
| child | Thyroxine (T4) [Moles/volume] in Serum or Plasma by Immunoassay | 83120-6 |
| child | Thyroxine (T4)/Thyroxine binding globulin [Mass Ratio] in Serum or Plasma | 3027-0 |
| child | Thyroxine (T4)/Triiodothyronine (T3) uptake index [Mass Ratio] in Serum or Plasma | 3028-8 |
| PartDisplayName | en-US | Thyroxine | Serum or Plasma | Chemistry - non-challenge |
LOINC Version: 2.77
FHIR