Normal values are from 0.4 to 4.0 mIU/L for those with no symptoms of extraordinary thyroid function. However, those without signs or symptoms of an underactive thyroid who own a TSH value over 2.0 mIU/L but commonplace T4 levels may develop hypothyroidism sometime contained by the future. This is call subclinical hypothyroidism (mildly underactive thyroid) or early-stage hypothyroidism. Anyone with a TSH advantage above this level should be followed extraordinarily closely by a doctor.
Greater-than-normal levels may indicate:
Congenital hypothyroidism (cretinism)
Exposure to mice (lab workers or veterinarians)
Primary hypothyroidism
Thyroid hormone resistance
TSH-dependent hyperthyroidism
Lower-than-normal level may be due to:
Hyperthyroidism
TSH deficiency
Use of unshakable medications including dopamine agonists, glucocorticoids, somatostatin analogues, and bexarotene.
The conventional TSH range vary in every laboratory and surprisingly the "ordinary range" is CONSTANTLY changing.
The most laboratories contained by the U.S. and many laboratories uses the REFERENCE RANGE 0.5 to 5.0 mIU/L as the norm. Levels below 0.5 indicate hyperthyroidism while level above 5.0 indicate hypothyroidism.
medicine and robustness guarantee correctness , is for informational purposes only guidance or treatment for any medical conditions.
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