8 doctors weighed in:

What do these types of test means: tsh, t3, (liothyronine) t4?

8 doctors weighed in
Dr. Francine Yep
Family Medicine
5 doctors agree

In brief: Gas pedal & gas

Tsh is like the gas pedal.
T3 (liothyronine) and T4 are the gas. The pituitary sends TSH [thyroid stimulating hormone], a chemical message to the thyroid to work faster or slower. High TSH means low thyroid. Low TSH means high thyroid. T3 (liothyronine) is active form of thyroid hormone. T4 is inactive thyroid hormone.

In brief: Gas pedal & gas

Tsh is like the gas pedal.
T3 (liothyronine) and T4 are the gas. The pituitary sends TSH [thyroid stimulating hormone], a chemical message to the thyroid to work faster or slower. High TSH means low thyroid. Low TSH means high thyroid. T3 (liothyronine) is active form of thyroid hormone. T4 is inactive thyroid hormone.
Dr. Francine Yep
Dr. Francine Yep
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Dr. Quang Nguyen
Internal Medicine - Endocrinology
2 doctors agree

In brief: Thyroid

These tests are used to evaluate your pituitary and thyroid axis.
They are often checked to see if you have a thyroid problem.

In brief: Thyroid

These tests are used to evaluate your pituitary and thyroid axis.
They are often checked to see if you have a thyroid problem.
Dr. Quang Nguyen
Dr. Quang Nguyen
Thank
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