Thyroid-Stimulating Hormone (TSH)

The Thyroid-Stimulating Hormone (TSH) test measures the level of TSH in the blood. TSH is produced by the pituitary gland and regulates the production of thyroid hormones (T3 and T4) by the thyroid gland. This test is commonly used to assess thyroid function and diagnose thyroid disorders such as hypothyroidism and hyperthyroidism.

Sample type:

Serum

Preparation:

You do not need to do anything special to prepare for the sample collection. Fasting is not required for this test.

Test type:

In person or via trained mobile phlebotomist

Biomarkers

Symptoms or conditions analyzed by this test

The TSH test evaluates thyroid function by measuring TSH levels, which influence the production of thyroid hormones. Elevated TSH levels can indicate hypothyroidism, characterized by symptoms like fatigue, weight gain, and cold intolerance. Low TSH levels suggest hyperthyroidism, which may present with symptoms such as weight loss, rapid heart rate, and heat intolerance. This test is crucial for diagnosing thyroid disorders, monitoring thyroid function, and guiding treatment.

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