Thyroid
Also known as: Thyroid Peroxidase, TPO, Microsomal Antigen
No common urgent flag from this test alone
This test looks for special fighters in your blood called antibodies. These antibodies are attacking a helper protein in your body called thyroid peroxidase. This helper protein is very important. It helps your thyroid gland make hormones.
Doctors often order this test to find out why your thyroid isn't working right. They might think your body's defense system is attacking your thyroid. This test helps them see if your immune system is causing problems like Hashimoto's or Graves' disease.
Normal value ranges for TPOAb can vary slightly among different laboratories. Your healthcare provider will interpret your specific test results, considering factors like your age, sex, pregnancy status, and clinical context.
Clinical Reference
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Educational purposes only — This information is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your lab results with your healthcare provider.