What Is a Thyroid Panel?
A thyroid panel evaluates thyroid function using multiple tests together.
Typical Panel Components
- TSH — most sensitive screening test
- Free T4 — active thyroxine
- Free T3 — active triiodothyronine
- Anti-TPO — Hashimoto's antibodies
- TSI — Graves' antibodies
When Is a Full Panel Ordered?
- Symptoms of thyroid dysfunction
- Abnormal TSH on screening
- Monitoring thyroid medication
- Family history of thyroid disease
- Pregnancy
Source: NLM MedlinePlus, American Association for Clinical Chemistry.
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