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What is t3u mean? And what is high t3u mean?

1 doctor weighed in

In brief: It means

Resin uptake of tri-iodo thyronine.
It means you are possibly hyperthyroid, but it depends on the rest of your thyroid function tests, such as total and free t4. Confused? This is a complicated set of tests to interpret, so ask your endocrinologist.

In brief: It means

Resin uptake of tri-iodo thyronine.
It means you are possibly hyperthyroid, but it depends on the rest of your thyroid function tests, such as total and free t4. Confused? This is a complicated set of tests to interpret, so ask your endocrinologist.
Dr. Robert Uyeda
Dr. Robert Uyeda
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