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Thyroid Panel

Your thyroid controls metabolism, energy, mood, and weight. Most doctors only check TSH. We test the full picture.

  • TSH (Thyroid-Stimulating Hormone)
  • Free T3 & Free T4
  • TPO & Thyroglobulin Antibodies
  • Reverse T3
$125 $104

Direct-to-you pricing

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Secure checkout · Visit any Quest Diagnostics · Results in 5–7 business days*

  • CLIA-certified Quest Diagnostics lab
  • 2,200+ locations nationwide
  • Plain-English results explained
  • No doctor visit needed

* Most results available within 5–7 business days. Some tests may take longer.

What's Included

6* biomarkers - click to see what's included and why it matters.

  • TSH (Thyroid-Stimulating Hormone)

    Produced by the pituitary gland to regulate thyroid hormone production; the standard first-line test for thyroid function.

  • Free T3

    The active, unbound form of triiodothyronine, the thyroid hormone that most directly drives metabolism at the cellular level.

  • Free T4

    The unbound, usable form of thyroxine, the main hormone produced by the thyroid gland that the body converts into active T3.

  • TPO Antibodies (Thyroid Peroxidase)

    Antibodies that attack thyroid tissue; elevated levels are the hallmark of autoimmune thyroid conditions like Hashimoto's.

  • Thyroglobulin Antibodies

    Antibodies that target thyroglobulin, a protein used to make thyroid hormone; elevated levels indicate autoimmune thyroid disease.

  • Reverse T3

    An inactive form of thyroid hormone that can block the action of active T3; elevated levels can explain thyroid-like symptoms even when standard thyroid labs look normal.

*Every result that appears on your official lab report, calculated values included, nothing invented to inflate the count. Conditional add-on tests that only run if an initial result is abnormal aren't counted. How we count →

How It Works

1

Choose Your Panel(s)

Pick one or more targeted panels and add them to your cart.

2

Order Online

Complete your order in minutes. No doctor's appointment or referral needed.

3

Visit Quest Diagnostics

Walk into any Quest location near you. Over 2,200 locations nationwide.

4

Get Results + Guidance

Receive your results with clear, plain-English explanations of what they mean.

Why It Matters

Thyroid symptoms get written off constantly - fatigue blamed on stress, weight gain blamed on diet, brain fog blamed on aging. A standard doctor visit usually stops at TSH, which misses a real share of people whose actual problem is in T3, T4, or thyroid antibodies. This panel checks the whole thyroid picture at once, so you're not stuck guessing why you feel off when your one lab result came back "normal."

Ready to Order Your Thyroid Panel?

Visit any Quest Diagnostics near you. Over 2,200 locations nationwide, most accept walk-ins.

$125 $104

Frequently Asked Questions

No. A licensed physician authorizes your lab work as part of the ordering process. No doctor visit or referral needed.

At any Quest Diagnostics Patient Service Center — there are over 2,200 locations nationwide. Most accept walk-ins, but you can also search locations and schedule your appointment ahead of time at questdiagnostics.com/locations/search if you prefer to skip the wait.

Once your lab work is processed, you'll receive an email letting you know your results are ready. Log in at results.keenlythriving.com to view your full report and download a PDF copy.

Your results are posted to your secure portal with plain-English context on each test, focused on optimal ranges, not just whether something is "normal." You'll get an email when they're ready.

Absolutely! Add as many panels as you'd like to your cart. All tests are run from a single blood draw at Quest.

These panels are self-pay. The upside: no surprise bills, no prior authorization, and you get exactly what you order at the price listed.

For most panels, yes. A 10-12 hour fast is recommended (water is fine). Specific prep instructions are included with your order.

We pass our savings directly to you. No middleman markup, no hidden fees. The price you see is the price you pay.

Take our quick quiz — it asks about your symptoms and goals, then recommends the best panel for you. Start the quiz →

Some testing companies count every calculated ratio and derived index as its own separate "biomarker," so a modest panel gets marketed as having 100+ biomarkers. We count every result that actually appears on your lab report - including calculated values like ratios, since those are real numbers you'll see and can verify yourself - but we don't add anything that isn't genuinely part of what gets reported, and we don't count conditional add-on tests that only run if an initial result comes back abnormal. The number you see is the number of results you'll actually get back, and you can count them yourself on your own report.

Not Sure Which Panel Is Right for You?

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