Labcorp's combined thyroid profile: TSH, total T4, total T3, T3 uptake, and the calculated free thyroxine index (FTI). A single-code screen of overall thyroid output and binding.
This panel measures overall thyroid hormone production and availability. It screens for thyroid disorders that affect metabolism, energy, and recovery—conditions like hypothyroidism or hyperthyroidism that can develop silently.
When elevated: Elevated thyroid hormones (T4, T3) or low TSH may indicate hyperthyroidism or overactive thyroid, causing increased metabolism, heart rate, and anxiety. In critically ill patients, high thyroid hormone levels can reflect acute illness rather than primary thyroid disease. When low: Low thyroid hormones (T4, T3) or high TSH may indicate hypothyroidism or underactive thyroid, causing fatigue, weight gain, and slowed metabolism. In acute illness, low thyroid hormone levels can be a marker of severity and poor prognosis.
Thyroid function directly influences metabolic rate, endurance capacity, and recovery speed. Athletes under heavy training stress or those experiencing unexplained fatigue, weight changes, or performance plateaus may benefit from this screen, though it's not routinely needed for healthy individuals with normal energy and recovery.
Turnaround Time
3 days (up to 10 days)
Order online
Choose your lab and check out. We send your lab requisition automatically — no doctor visit needed.
Get your sample collected
Visit a lab service center near you for a quick blood draw (or book at-home phlebotomy where available).
See your results
Your results land in your Insider portal, ready to review and act on — that easy.
Your price
$17.90$55
3.1× less than retail
Versus the typical direct-to-consumer retail price for this test (illustrative — consumer prices vary by provider and region).
$17.90
Peer-reviewed sources supporting the educational content on this page.
Labcorp's combined thyroid profile: TSH, total T4, total T3, T3 uptake, and the calculated free thyroxine index (FTI). A single-code screen of overall thyroid output and binding.
This panel measures overall thyroid hormone production and availability. It screens for thyroid disorders that affect metabolism, energy, and recovery—conditions like hypothyroidism or hyperthyroidism that can develop silently.
When elevated: Elevated thyroid hormones (T4, T3) or low TSH may indicate hyperthyroidism or overactive thyroid, causing increased metabolism, heart rate, and anxiety. In critically ill patients, high thyroid hormone levels can reflect acute illness rather than primary thyroid disease.
The Thyroid Profile II test starts at $17.90 at Labcorp. No doctor's visit and no insurance needed; we do not bill insurance. Fitomics Insider members pay from $14.90.
Results for the Thyroid Profile II test are typically ready about 3 days after your draw, and up to 10 days for some samples. Your results land in your Insider portal.
No. When you order the Thyroid Profile II test from Fitomics Research Labs, a licensed physician in our 50-state network reviews and signs your requisition after checkout, and it lands in your portal and inbox. Then visit any Labcorp, Quest, or BioReference patient service center for your draw; results post to your Insider portal.
Looking for something else? Browse every test by category.
