TSH: Results and Values (Thyroid-Stimulating Hormone, Thyrotropin)

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TSH

Alternate Names : Thyroid-Stimulating Hormone, Thyrotropin

TSH | Preparation & Expectations | Results and Values

What do the test results mean?

The normal concentrations of TSH in blood range from 0.2 to 4.7 mcU/mL.

Abnormally high levels of TSH may indicate the following:

cretinism, or arrested physical and mental development

primary hypothyroidism, or decreased function of the thyroid caused by problems within the thyroid

secondary hypothyroidism, or decreased functioning of the thyroid caused by problems in other organs

thyroiditis, or inflammation of the thyroid

Abnormally low levels of TSH may indicate hyperthyroidism, which is an overactive thyroid gland. A low level is also seen with hypopituitarism, which is an underactive pituitary gland.

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TSH: Preparation & Expectations

Author: David T. Moran, MD
Reviewer: Sandy Keefe, RN, MSN
Date Reviewed: 06/06/01

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