Thyroid tests: Normal TSH is from 0.3 to 3. Thyroid peroxidase (tpo), normally found in the thyroid plays a role in the production of thyroid hormones. A tpo test detects antibodies against tpo in the blood. If you've been diagnosed with thyroid disease, your doctor may recommend a tpo antibody test — in addition to other thyroid tests — to help determine the cause.
Answered 6/10/2014
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Normal range: You want to know the normal range for this particular lab. Probably ok but better check.
Answered 2/6/2013
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