Goals and conditions · Health goal
Thyroid function
How much thyroid hormone the thyroid makes, as measured first by TSH and then by free thyroid hormones and antibodies.
Biomarkers
Start with the primary markers, then add the companions that change how the primary result reads. Each link cites its source.
T4,Free(Direct)Primary marker
NICE measures free thyroxine in the same sample when TSH is outside the reference range.
Tests: Labcorp 3, Quest Diagnostics 1, with ranges on the biomarker page
TSH-ICMAPrimary marker
ATA calls serum TSH the most sensitive and specific single blood test and uses it as the initial screening test.
Tests: Labcorp 1, Quest Diagnostics 10, with ranges on the biomarker page
Thyroid Peroxidase AbCompanion marker
NICE considers measuring TPO antibodies for adults with TSH above the reference range.
Tests: Labcorp 6, Quest Diagnostics 9, with ranges on the biomarker page
Triiodothyronine (T3), FreeCompanion marker
NICE measures free tri-iodothyronine with free thyroxine when TSH is below the reference range.
Tests: Labcorp 1, Quest Diagnostics 1
Related
Sources
We list which biomarkers a named source connects to this goal; we do not diagnose it. Interpret your own results with a licensed clinician, or track them in Aumnivida.