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The most common cause of hypothyroidism (underactive thyroid). thyroid peroxidase level 9
While a level of 9 is normal, it should be interpreted alongside other thyroid markers: This is for informational purposes only
The Thyroid Peroxidase antibody test measures the amount of antibodies your immune system produces against an enzyme (TPO) found in the thyroid gland. thyroid peroxidase level 9
Doctors usually order this test to help diagnose or rule out autoimmune thyroid conditions: