Blood testsThyroid

Thyroid panel.

TSH with free T4 and free T3.

  • Markers3
  • SampleBlood draw
  • FastingNone
  • Draw timeAny time
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What it measures.

3 results across the parts below, each in plain English. This describes what a lab measures; it cannot tell you what your own result means.

  • Thyroid stimulating hormoneTSH

    Made by the pituitary gland. It signals the thyroid to make its hormones, and is the most common first thyroid test.

  • Free thyroxineFree T4

    The main hormone the thyroid makes, the part that is not bound to proteins in the blood.

  • Free triiodothyronineFree T3

    The active thyroid hormone, made mostly from T4 in body tissues, the part not bound to proteins.

How to prepare.

  1. No fasting needed. Eat and drink as usual.
  2. If you take thyroid medicine, have the draw before your daily dose.

Often taken with it.

  • Thyroid1 marker

    TSH

    Measures thyroid stimulating hormone, the usual first thyroid test.

    • No fasting

    TSH

  • Hormones1 marker

    Cortisol, morning

    Measures cortisol in a sample drawn between 7 and 9 a.m.

    Cortisol

  • Wellness panels73 markers

    Comprehensive wellness panel

    Blood count, metabolism, kidney and liver, cholesterol, thyroid and iron in one draw.

    • Fasting 12 hours

    CBC, CMP, Kidney, Liver and more

The waitlist makes no eligibility, diagnosis, treatment, prescribing, or medication access decisions.

Clinical questions, eligibility, and care decisions happen later with a licensed provider, outside this form and only where legally available.