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TSH stands for thyroid stimulating hormone, which is a hormone released by the hypothalamus to stimulate the release of hormones from the thyroid gland. The TSH level refers to the amount of TSH found in the blood. A per... More »

www.reference.com Health Medical Ranges & Levels

According to About.com, low levels of TSH, or thyroid-stimulating hormone, occur when the pituitary gland shuts down TSH production due to high levels of thyroid hormone in the blood. The low levels of TSH are the pituit... More »

www.reference.com Health Medical Ranges & Levels

A value less than 0.4 milli-international units per liter constitutes a low TSH level, according to MedlinePlus. Low TSH is sometimes desirable for patients who are being treated for a pituitary disorder or thyroid cance... More »

www.reference.com Health Medical Ranges & Levels
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A TSH high-sensitivity blood test is used to check the level of TSH, or thyroid-stimulating hormone, in the blood in order to diagnose or monitor problems with the thyroid gland, states WebMD. It is classified as high se... More »

www.reference.com Health Medical Ranges & Levels

According to WebMD, high TSH (thyroid-stimulating hormone) levels indicate an underactive thyroid gland (hypothyroidism). Common symptoms include feeling weak, tired or depressed, sensitivity to cold, constipation, britt... More »

www.reference.com Health Medical Ranges & Levels

Low thyroid-stimulating hormone, or TSH, levels can lead to symptoms such as fatigue, leg cramps, dry skin and a feeling of being too cold and can cause an underactive thyroid gland, or hypothyroidism, explains Cleveland... More »

www.reference.com Health Medical Ranges & Levels

A TSH, or thyroid-stimulating hormone, level of 21 is moderately dangerous, according to WebMD. Normal TSH levels for adults are between 0.4 and 4.2 microunits per milliliter, so a TSH of 21 potentially requires treatmen... More »

www.reference.com Health Medical Ranges & Levels