testsTSH
Tests TSH refer to the measurement of thyroid-stimulating hormone in the blood. TSH is produced by the pituitary gland and regulates thyroid hormone production by the thyroid gland. The TSH test is a standard part of evaluating thyroid function and is often ordered together with free T4 to help classify thyroid conditions.
Procedure and reference ranges: A blood sample is drawn from a vein and analyzed by a laboratory
Interpretation: A high TSH typically signals hypothyroidism (insufficient thyroid hormone production or pituitary response), while a
Uses and limitations: The TSH test is the first-line tool for screening and monitoring thyroid disorders, including
Pre-test considerations: Fasting is not required, and timing is generally flexible, though TSH can show mild