TSH

The TSH (Thyroid-Stimulating Hormone) blood test measures the level of TSH, a hormone produced by the pituitary gland, in your blood. TSH plays a crucial role in regulating thyroid gland activity and the production of thyroid hormones.

Sample Type: The test requires a small blood sample, typically obtained by drawing blood from a vein in your arm using a needle.

Normal Range: The normal range for TSH levels in the blood is generally between 0.4 to 4.0 milli-international units per liter (mIU/L). However, the specific range may vary slightly depending on the laboratory and the reference values they use.

TSH is an important marker used to assess thyroid function. Higher TSH levels indicate an underactive thyroid (hypothyroidism), while lower TSH levels suggest an overactive thyroid (hyperthyroidism). If your TSH levels fall outside the normal range, further evaluation of your thyroid function, such as measuring levels of thyroid hormones (T3 and T4), may be necessary.

It’s important to consult with a healthcare professional for proper interpretation of your TSH test results and to discuss any symptoms or concerns related to your thyroid health.