Total T3

MeasuredUseful

All the active thyroid hormone in your blood, bound and free.

Affected by pregnancy and other proteins, so free T3 is usually preferred.

Part of

How we rate it — Useful

Worth doing for a specific reason — a risk factor, a symptom, an age group.

This rating and the description above were written against published screening guidelines by someone who is not a clinician, and are awaiting review by one. We would rather say that than imply an authority we do not have.

Check-ups that include it

In 41 of the 78check-ups we track — 53%. Cheapest first.

and 29 more.

Also sold as

Every one of these names refers to this same test. Resolving them to one canonical entry is what makes an honest comparison possible.

t3 · t3 total · t3 total tri iodothyronine · tota ltriiodothyronine t3 · total t3 · total triiodothyronine · total triiodothyronine t3 · triiodothyronine

Information here is for comparing packages, not for diagnosing yourself. Talk to a doctor about which tests you actually need.