tsh blood test normal range
TSH Normal Range. The amount of measurement of thyroid stimulating hormone (TSH) in blood is done by a laboratory blood test called a TSH test. The pituitary gland produces TSH (or thyroid stimulating hormone).In general, it modulates the thyroid gland to produce and secrete thyroid hormones into the blood.he official normal range of TSH followed by many doctors and laboratories until 2002 was from between 0.5 to 5. According to this TSH range, a TSH over 5 indicated an under active thyroid (or hypothyroidism); while a low TSH value below0.5 indicated an overactive thyroid or (hyperthyroidism).