1. What is TSH?

TSH (Thyroid-Stimulating Hormone) is a hormone produced by the pituitary gland that stimulates the thyroid to produce thyroid hormones. It's a key marker for assessing thyroid function.

2. How is TSH Measured?

TSH is measured through a blood test. The test measures the concentration of TSH in the blood, typically reported in milli-international units per liter (mIU/L).

3. Importance of TSH Testing

Details: TSH testing is crucial for diagnosing thyroid disorders, monitoring thyroid treatment, and assessing overall metabolic health. Abnormal TSH levels can indicate hyperthyroidism or hypothyroidism.

4. Using the Calculator

Tips: Enter your TSH level in mIU/L from your blood test results. The calculator will provide an interpretation based on standard reference ranges.

5. Frequently Asked Questions (FAQ)

Q1: What are normal TSH levels?
A: Normal TSH levels typically range from 0.4 to 4.0 mIU/L, though reference ranges may vary slightly between laboratories.

Q2: When should I get my TSH tested?
A: TSH testing is recommended if you experience symptoms of thyroid dysfunction, have a family history of thyroid disease, or are monitoring thyroid treatment.

Q3: How is the blood sample collected?
A: A healthcare professional will draw a blood sample from your vein, usually from the arm. No special preparation is typically needed.

Q4: Can medications affect TSH levels?
A: Yes, certain medications including thyroid hormones, steroids, and dopamine can affect TSH levels. Always inform your doctor about all medications you're taking.

Q5: What do abnormal TSH levels indicate?
A: Low TSH may indicate hyperthyroidism, while high TSH may indicate hypothyroidism. However, interpretation should always be done by a healthcare professional in context with other tests and symptoms.