Doctors usually order this test to help diagnose or rule out autoimmune thyroid conditions:
A level of 9 IU/mL falls well within this range, suggesting that your immune system is not currently attacking your thyroid gland. Why Is the TPO Test Done? thyroid peroxidase level 9
Laboratory "normal ranges" can vary slightly. You should always compare your result against the specific reference range provided on your lab report. Doctors usually order this test to help diagnose