| parent | Thyroid Hormones- | LP31666-8 |
| child | Triiodothyronine resin uptake (T3RU) | LP15921-7 |
| child | Triiodothyronine | Saliva | Chemistry - non-challenge | LP381526-5 |
| child | Triiodothyronine | Serum or Plasma | Chemistry - non-challenge | LP381527-3 |
| child | Triiodothyronine.free | LP29126-7 |
| child | Triiodothyronine free index | LP183617-2 |
| child | Triiodothyronine | Urine | Chemistry - non-challenge | LP426605-4 |
| child | Triiodothyronine.true | LP15924-1 |
| child | Triiodothyronine.reverse | LP15923-3 |
| child | Triiodothyronine/Thyroxine | LP307573-8 |
| child | Triiodothyronine/Triiodothyronine.reverse | LP287309-1 |
| child | Triiodothyronine/Triiodothyronine uptake index | LP307574-6 |
| parent | Thyroid Hormones- | LP31666-8 |
| child | Triiodothyronine resin uptake (T3RU) | LP15921-7 |
| child | Triiodothyronine | Serum or Plasma | Chemistry - challenge | LP387149-0 |
| child | Triiodothyronine.free | LP29126-7 |
| parent | SERO | LP7844-6 |
| child | Triiodothyronine Ab | LP40057-9 |
| STATUS | ACTIVE |
| PartDisplayName | en-US | Triiodothyronine |
| DisplayName | en-US | Triiodothyronine |
LOINC Version: 2.81
FHIR