Tsh Blood Work

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A TSH test measures the amount of thyroid stimulating hormone (TSH) in your blood. TSH is produced by the pituitary gland and tells the thyroid gland to make and release the hormones thyroxine (T4) and triiodothyronine (T3).

See also:

  • T3 test
  • T4 test

Alternative Names

Thyrotropin; Thyroid stimulating hormone

How the test is performed

Blood is typically drawn from a vein, usually from the inside of the elbow or the back of the hand. The site is...

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