Current promotion
Hyperthyroidism & Graves' Disease Blood Tests: TSH, Free T3 & T4
Measure the thyroid hormones and autoimmune antibodies associated with an overactive thyroid, from a simple three-test snapshot to comprehensive 17-test panels.
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Individual thyroid tests from $17.56 and multi-test panels from $49.38 after the 20% discount (promotional pricing at time of writing).
At a glance
Hyperthyroidism and Graves' disease blood testing measures thyroid stimulating hormone (TSH), Free T3, and Free T4, and, in expanded panels, autoimmune antibodies such as thyroid stimulating immunoglobulin (TSI) and thyroid peroxidase antibodies, to screen for patterns associated with an overactive thyroid. These panels are for adults experiencing symptoms like unexplained weight loss, rapid heartbeat, anxiety, or heat sensitivity, and for anyone monitoring thyroid markers with their doctor. Panels range from a basic three-test check to comprehensive arrays covering 80-plus biomarkers.
Best suited for
- Adults noticing symptoms often associated with an overactive thyroid, unexplained weight loss, rapid or irregular heartbeat, anxiety, tremors, increased perspiration, or heat sensitivity, who want concrete numbers to review with their doctor
- Women tracking changes in menstrual cycles, energy, or weight, since thyroid conditions are more prevalent in women
- People with a personal or family history of thyroid or autoimmune conditions who want periodic screening of TSH, Free T3, Free T4, and thyroid antibodies
- Anyone already working with a clinician on a thyroid condition who wants convenient lab monitoring between appointments
- Health-conscious self-trackers establishing a thyroid baseline before symptoms ever become a question
What's included
TH-1 Hyperthyroidism Panel
3 tests: TSH, Free T3, Free T4
TH-2 Hyperthyroidism Panel
13 tests, 76 biomarkers, adds broader health markers
TH-3 Hyperthyroidism Panel
15 tests, 79 biomarkers, adds metabolic, blood-health, and nutritional markers
TH-4 Hyperthyroidism Panel
17 tests, 81 biomarkers, includes autoimmune markers
TH-1 Graves' Disease Panel
3 tests: TSH, Free T3, Free T4
TH-2 Graves' Disease Panel
13 tests, 76 biomarkers
TH-3 Graves' Disease Panel
15 tests, 79 biomarkers, thyroid function plus autoimmune markers
TH-4 Graves' Disease Panel
17 tests, 81 biomarkers, the most comprehensive option
Thyroid Foundation Panel
13 tests, 23 biomarkers
Thyroid Foundation Panel Plus Thyroid Panel Add-On
15 tests, 78 biomarkers
Thyroid Add-On Panel
3 tests, 55 biomarkers
TSH Test
Thyroid stimulating hormone (thyrotropin)
T4 Free Test
Free thyroxine (FT4)
T3 Free Test
Free triiodothyronine (FT3)
T4 Total Test
Bound plus unbound thyroxine
T3 Total Test
Bound plus unbound triiodothyronine
T3 Reverse Test
Reverse T3 (rT3), an inactive form of T3
Thyroid Peroxidase and Thyroglobulin Antibodies Test
TPO and TgAb autoimmune markers
TSI Test
Thyroid stimulating immunoglobulin, a marker associated with Graves' disease
Key biomarker ranges
Commonly used adult reference ranges for markers this panel measures, labs vary, so always interpret results against your lab's stated ranges and with your doctor.
Commonly used reference ranges run roughly 0.4–4.0 µIU/mL; TSH moves inversely to thyroid activity, and time of day, illness, and biotin can skew results.
| Zone | Range |
|---|---|
| Low | 0–0.4 µIU/mL |
| Normal range | 0.4–4 µIU/mL |
| Mildly elevated | 4–6 µIU/mL |
| High | 6–10 µIU/mL |
Commonly used reference ranges run roughly 2.3–4.2 pg/mL; Free T3 is best interpreted alongside TSH and Free T4 rather than in isolation.
| Zone | Range |
|---|---|
| Low | 0–2.3 pg/mL |
| Normal range | 2.3–4.2 pg/mL |
| High | 4.2–6 pg/mL |
Commonly used reference ranges run roughly 0.8–1.8 ng/dL; Free T4 shows thyroid hormone supply, while TSH shows the pituitary’s demand signal.
| Zone | Range |
|---|---|
| Low | 0–0.8 ng/dL |
| Normal range | 0.8–1.8 ng/dL |
| High | 1.8–3 ng/dL |
The importance of testing
Your thyroid sets the pace for much of your metabolism, so when it produces too much hormone, the effects show up across the body, heart rate, weight, energy, mood, digestion, and body temperature. The core lab pattern to understand is the relationship between TSH and the free thyroid hormones: TSH is the pituitary's signal to the thyroid, so a suppressed TSH alongside elevated Free T4 or Free T3 is a pattern commonly associated with an overactive thyroid. Measuring all three together gives you and your doctor far more context than any single number.
Antibody testing adds another layer. Graves' disease, an autoimmune condition, is the most common cause of hyperthyroidism, and it leaves measurable fingerprints in the blood: thyroid stimulating immunoglobulin (TSI) and thyroid peroxidase and thyroglobulin antibodies (TPO and TgAb) are markers associated with autoimmune thyroid activity. If your hormone levels look off, antibody results are exactly the kind of data worth bringing to your doctor to discuss what may be driving the change.
Because an overactive thyroid influences so many systems, the larger panels in this collection (TH-2 through TH-4) pair thyroid hormones and antibodies with broader metabolic, blood-health, and nutritional markers, up to 81 biomarkers, so you can see the wider picture in one draw. That breadth is also useful for tracking: repeating the same panel over time shows whether your markers are trending toward, holding within, or moving away from reference ranges, which is valuable context whether you are establishing a baseline or following a care plan your clinician manages.
None of these tests replaces medical care, lab results are a starting point for a conversation, not a conclusion. Use them to arrive at your appointment with concrete numbers, flag anything out of range for your doctor to review, and follow changes between visits.
Promo code
THHYPER20Save 20% with code THHYPER20, current promotion; confirm final pricing on the partner page.
Ready to get your numbers? Order online, visit a nearby draw site, and receive private results to review with your doctor.
Order NowFrequently asked questions
What blood tests screen for hyperthyroidism?
The core blood tests for evaluating an overactive thyroid are TSH, Free T4, and Free T3. A suppressed TSH combined with elevated free thyroid hormone levels is a pattern associated with hyperthyroidism, and expanded panels add antibody, metabolic, and nutritional markers for a fuller picture. Whatever panel you choose, results are best reviewed with your doctor, who can interpret them in the context of your symptoms and history.
How is Graves' disease testing different from standard thyroid testing?
Graves' disease testing adds autoimmune antibody measurements, most notably thyroid stimulating immunoglobulin (TSI) plus thyroid peroxidase and thyroglobulin antibodies, on top of the standard TSH, Free T3, and Free T4. Elevated TSI is a marker associated with Graves' disease, the most common cause of hyperthyroidism, so antibody results give your doctor important context about whether an autoimmune process may be involved.
Can I order these thyroid tests without a doctor's visit?
Yes, these panels are sold through a direct-access lab testing partner, so you can order online, visit a local draw site for a blood sample, and receive your results without needing a referral first. Quick, reliable results are delivered directly to you, and any out-of-range values are worth bringing to your doctor to review.
Which hyperthyroidism panel should I choose?
A basic three-test panel (TSH, Free T3, Free T4) is a sensible starting point if you want an initial snapshot of thyroid function. The mid-tier and comprehensive panels (TH-2 through TH-4, with up to 81 biomarkers) add autoimmune antibodies plus metabolic, blood-health, and nutritional markers, useful if you want deeper context in a single draw or are tracking markers over time with your clinician.
How much does hyperthyroidism and Graves' disease testing cost?
With the current 20% promotion (code THHYPER20), individual thyroid tests start at $17.56 and multi-test panels start at $49.38, with the most comprehensive 17-test panels at $497.86. These are promotional prices at the time of writing, confirm final pricing on the partner page before ordering.
Is this testing available in every US state?
No, direct-to-consumer lab testing is restricted or prohibited in New York, New Jersey, and Rhode Island, so residents of those states may be blocked at the partner's checkout. If you live elsewhere in the US, you can typically order online and use a nearby draw location.
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