A 28-year-old female asked:
i have a tsh level of .37. i feel fatiqued a lot and also i gained 30-40 lbs within 2-3 months. is this tsh level normal? 1 doctor told me it was under the normal range and the other told me otherwise.
2 doctor answers
Dr. Robert Rahimi answered
9 years experience Hepatology
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usually TSH levels have different ranges of normal from different laboratories, however the normal range is usually written in parenthesis next to the actual lab test result. This being said, your TSH level in general would fall outside the "normal" range for most lab centers running the test, however it is the free T3 (liothyronine) and free T4 that exert their activity at organs and tissues, hence if these labs are in the normal range, one might consider your overall test "normal" (that is probably why one physician told you that your tests were normal and the other told you otherwise). You should repeat all 3 of these tests as 3 months have passed by and you are symptomatic. There are other lab tests and imaging that can be done, however i would discuss this with your physician. Also, these lab tests can be directly influenced by medications so i would check with your physician regarding the discussion above.
Answered on Oct 3, 2016
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1 thank
Dr. Gurmukh Singh answered
49 years experience Pathology
Just below normal: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Talk to the doctor who ordered the tests. Having said that, your TSH is just below normal, but your symptoms are not in keeping with this lab result. You may have other health issues and may need to consult an endocrinologist.
Answered on Oct 29, 2018
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