| parent | Thyroxine.free | LP29119-2 |
| child | Thyroxine (T4) free [Mass/volume] in Serum or Plasma --1.5 hours post XXX challenge | 56988-9 |
| child | Thyroxine (T4) free [Units/volume] in Serum or Plasma --1 hour post XXX challenge | 27989-3 |
| child | Thyroxine (T4) free [Mass/volume] in Serum or Plasma --1 hour post XXX challenge | 56986-3 |
| child | Thyroxine (T4) free [Moles/volume] in Serum or Plasma --1st specimen post XXX challenge | 25790-7 |
| child | Thyroxine (T4) free [Mass/volume] in Serum or Plasma --20 minutes post XXX challenge | 56989-7 |
| child | Thyroxine (T4) free [Mass/volume] in Serum or Plasma --2 hours post XXX challenge | 58837-6 |
| child | Thyroxine (T4) free [Moles/volume] in Serum or Plasma --2nd specimen post XXX challenge | 25791-5 |
| child | Thyroxine (T4) free [Mass/volume] in Serum or Plasma --3 hours post XXX challenge | 58836-8 |
| child | Thyroxine (T4) free [Moles/volume] in Serum or Plasma --3rd specimen post XXX challenge | 25792-3 |
| child | Thyroxine (T4) free [Mass/volume] in Serum or Plasma --40 minutes post XXX challenge | 56987-1 |
| child | Thyroxine (T4) free [Moles/volume] in Serum or Plasma --4th specimen post XXX challenge | 25793-1 |
| child | Thyroxine (T4) free [Moles/volume] in Serum or Plasma --5th specimen post XXX challenge | 25794-9 |
| child | Thyroxine (T4) free [Moles/volume] in Serum or Plasma --6th specimen post XXX challenge | 25795-6 |
| child | Thyroxine (T4) free [Moles/volume] in Serum or Plasma --7th specimen post XXX challenge | 25796-4 |
| child | Thyroxine (T4) free [Moles/volume] in Serum or Plasma --8th specimen post XXX challenge | 25797-2 |
| child | Thyroxine (T4) free [Moles/volume] in Serum or Plasma --9th specimen post XXX challenge | 25798-0 |
| child | Thyroxine (T4) free [Units/volume] in Serum or Plasma --baseline | 27987-7 |
| child | Thyroxine (T4) free [Mass/volume] in Serum or Plasma --baseline | 58838-4 |
| PartDisplayName | en-US | Thyroxine free | Serum or Plasma | Chemistry - challenge |
LOINC Version: 2.77
FHIR