TSH
The signal your brain sends to your thyroid asking for more or less output.
TSH is one number.Your thyroidhas several.
A routine physical often stops at TSH. The Baseline reads four thyroid markers from one Quest draw against the optimal range for your age and sex, and a physician reviews every result.
- 1. Join$199 a year. HSA and FSA eligible, cancel anytime.
- 2. DrawAny of 2,000+ Quest Diagnostics locations, or at home.
- 3. ReviewYour physician-read report and plan in under 10 days.
- Physician reviewed
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Built with board-certified physicians, trained and certified at
- Harvard
- Yale School of Medicine
- Hospital for
Special Surgery - ACC American College of Cardiology
- IFM Institute for Functional Medicine
- Icahn School of Medicine at Mount Sinai
Sports medicine, cardiology, endocrinology, and functional medicine. Meet the doctors
A routine physical often reads one. We read four.
Four thyroid markers, one drawTotal T4
The total amount of thyroxine, the main hormone the thyroid releases.
T3 uptake
How much of the thyroid carrier protein is free to bind hormone.
Free T4 index
Total T4 corrected by T3 uptake: an estimate of the hormone that is free and active.
Read alongside 104 more markers from the same draw, including cholesterol, iron and ferritin, vitamin D and cortisol.
Get my Baseline, $199What you get
Everything in the $199.
- 108-marker panel at QuestFour thyroid markers and 104 more, in one draw
- A physician reviews every resultRead against optimal for your age and sex
- A personalized planDiet, lifestyle, and supplements
- Your dashboardBiological age, Insyght score, every marker over time
- Care team and AI assistantWith full context on your results
$199per year. That is 55 cents a day.
Get my Baseline, $199
HSA and FSA eligible in most cases. Cancel anytime.
Read against optimal, not just normal.
Each thyroid marker is read against the optimal range for your age and sex, not only the lab’s reference range. A physician reviews the panel, and your report shows what needs attention and what to do next.
Get my Baseline, $199What needs your attentionSample report
EndocrineLow
Thyroid output is running just under range.
Total T4 sits below the reference floor.
The doctors behind your panel.
Maria Gutierrez Horn, MD, FACE
Endocrinology. The optimal-not-normal approach behind the platform.
Rishi Panchal, DO, FACC
Cardiology. Chief of Medicine, HCA Florida Palms West.
Stephen J. Nicholas, MD
Sports medicine. Founder of NY Orthopedics; former Jets and Islanders team physician.
Same draw. Different read.
How a routine physical and The Baseline each handle thyroid.
The BaselineA routine physical
Thyroid markersFour: TSH, total T4, T3 uptake, free T4 indexOften TSH alone
Read againstThe optimal range for your age and sexThe lab’s reference range
Who reviews itA physician reviews every resultFlagged only when out of range
The whole panel108 markersAbout 20
What a routine physical includes varies by clinician. This reflects common practice, not every visit.
The Baseline
What could cost you $15,000 is now $199.
$199a year
Get my Baseline
Cancel anytime. No doctor’s order or insurance needed.
One draw, four thyroid markers and 104 more read against optimal, a physician’s review, your plan, and a year of care.
- TodayYou choose a Quest location or an at-home draw and pick a time.
- This weekA ten-minute draw at Quest or at home.
- After resultsA physician reviews your panel. Your plan appears in the app.
Cancel anytime; refunds follow the refund policy. No insurance or doctor’s order required. HSA and FSA eligible on most plans. At-home draws at an additional cost where available.
Questions
Which thyroid markers are included?
Four, all from the same draw: TSH, total T4, T3 uptake and the free T4 index. They are read together, alongside the rest of the 108-marker panel.
Why read more than TSH?
TSH is the signal your brain sends to your thyroid. Total T4, T3 uptake and the free T4 index describe what the thyroid is putting out. Read together, they give the reviewing physician more than one number to work from.
How is this different from the bloodwork my doctor orders?
A standard physical checks around 20 markers and flags a result only when it falls outside the lab range. Insyght tests 108 markers across 10 systems and interprets each against optimal for your age and sex, then a physician reviews the panel. That surfaces in-range-but-suboptimal shifts a routine panel misses.
Do I need to fast?
An overnight fast of 8 to 12 hours is recommended for the most accurate results, and water is encouraged. The draw itself takes about 10 minutes.
Where is the draw?
Any of 2,000+ Quest Diagnostics locations, or at home with a certified phlebotomist where available. One draw covers the full panel.
What if everything comes back normal?
You still learn where you are thriving and you set a personal baseline, so small changes get caught early next year, long before they trip a lab range.
Does this replace my doctor?
No. It complements your primary care with deeper testing and a physician-reviewed plan. Share your results with your doctor.
Can I pay with an HSA or FSA?
In most cases, yes. Plan rules vary, so confirm with your administrator. An itemized receipt is available.
What if I change my mind?
Cancel anytime. Details are in the refund policy.
Your thyroid has more than one number.
Get my Baseline, $199Physician reviewed. HSA and FSA eligible in most cases. Cancel anytime.
