Interpretations of TSH Results
Thyroid stimulating hormone (TSH) is produced by the pituitary gland and stimulates the thryoid to release two different hormones. TSH levels are tested if your physician feels you are exhibiting signs of abnormal thyroid function and/or to monitor treatment of a previously diagnosed thyroid disorder.-
Normal
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A normal range for TSH is 0.4 to 4.0 milliunits per liter (mlU/L). If you are currently being treated for a thyroid disorder, an acceptable normal TSH range is 0.5 to 3.0 mlU/L.
Above Normal
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Levels higher than normal can indicate a few different diseases including primary hypothyroidism, thyroid hormone resistance, congenital hypothyroidism or TSH dependant hyperthyroidism.
Below Normal
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Levels that are lower than normal can indicate disease including hyperthyrodisim or TSH deficiency. Lower levels can be caused by a variety of medications as well.
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