It's just a number: Lab results are just numbers, and numbers don't mean much without the whole picture of the patient. A TSH level of 3.18 can be normal, can be low, or can be high, depending on what is going on with the patient and on why the test was done. If the patient has no symptoms that could be related to the thyroid gland, then a TSH of 3.18 is likely normal.
Answered 5/2/2019
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