Anti-Thyroid Peroxidase Antibodies
ANTI-TPO
Description
"Anti-Thyroid Peroxidase Antibodies" (anti-TPO) test detects antibodies that target thyroid peroxidase, an enzyme essential for hormone production. Doctors may recommend this test when unexplained fatigue, weight gain, or cold sensitivity becomes a concern. Elevated anti-TPO levels may indicate autoimmune thyroid conditions such as Hashimoto’s thyroiditis or Graves’ disease. The results help clarify the cause of thyroid dysfunction and guide treatment decisions. Ongoing testing supports early detection, helps monitor disease progression, and aids in long-term thyroid health management.
Category
Autoantibodies
Procedure
Invasive
Sample Type
Blood – Serum
Units
International Units Per Milliliter
Procedure Category
Blood Draw
Test Group
Basic Thyroid Group, Complete Thyroid Group
Test Group Description
Basic Thyroid Group: This group includes essential tests for evaluating thyroid function and detecting common thyroid disorders. Complete Thyroid Group: A comprehensive array of tests for a thorough evaluation of thyroid function, providing detailed insights into thyroid health and associated conditions.
Optimal Range
For All Individuals:
Conventional Unit: < 0.20 IU/mL
SI Unit: < 0.20 IU/mL
Normal Range
For All Individuals:
Conventional Unit: 0.00–34.00 IU/mL
SI Unit: 0.00–34.00 IU/mL
Results That Differ From The Norm (Direct and Indirect Causes)
Increased levels may indicate:
Chronic lymphocytic thyroiditis (Autoimmune inflammation of the thyroid gland)
Graves' disease (Autoimmune hyperthyroidism)
Hashimoto's disease (Autoimmune hypothyroidism)
Postpartum thyroiditis (Thyroid inflammation after childbirth)
Subclinical hypothyroidism (Mild thyroid underactivity without noticeable symptoms)
Key Reasons For Testing
Autoimmune Thyroid Disease Diagnosis: Detects antibodies to identify conditions like Hashimoto's or Graves' disease.
Differential Diagnosis: Distinguishes autoimmune thyroid disorders from other causes of thyroid dysfunction.
Prognostic Indicator: Predicts the progression of thyroid issues, including hypothyroidism or hyperthyroidism.
Prediction of Postpartum Thyroiditis: Identifies pregnant individuals at risk for thyroid issues after childbirth.
Health Status Conditions It May Be Used To Assess
Currently, this test is not directly associated with any conditions listed on the Health Status page. However, it may be included as part of a broader set of tests linked to specific health conditions.
Some Prominent Medical Labs That May Offer This Test
Please note that this particular test has not been associated with any of the listed prominent medical labs. We recommend enquiring with your private physician or nearest hospital to determine where this specific test can be performed.
References
Important Note
Any medical procedure yielding results outside the norm may be directly or indirectly linked to the conditions outlined on this page. Various factors, including genetics, medication and supplement usage, recent illnesses, pregnancy, pre-test eating, smoking, and stress, can impact the test's outcome. Additionally, factors like false positives, false negatives, inaccurate analyses, and others can influence results.
Reference ranges, which help healthcare professionals interpret medical tests, may vary depending on age, gender, and other factors. They may also differ between laboratories due to variations in instruments and methods used. Optimal ranges are designed for preventive purposes, aiming to identify trends and potential risks early, while normal ranges reflect conventional laboratory values indicating no current disease or pathology. Your healthcare practitioner may have specific reasons for testing that deviate from the usual or may interpret results differently based on individual circumstances. Proper interpretation typically involves considering clinical findings and other diagnostic tests. Hence, it is crucial to provide your healthcare professionals with a comprehensive medical history, consult with them for result interpretation, and follow their guidance for potential re-testing or additional diagnostics.
Disclaimer
This content is provided solely for informative and educational purposes. It is not intended as a substitute for medical advice or treatment from a personal physician. Regarding the interpretation of their medical test results and/or specific health questions, it is recommended that all readers and viewers consult their physicians or other qualified health professionals. The publisher is not responsible for any adverse health effects that may result from reading or following the information in this educational content. Before beginning any nutrition, supplement, or lifestyle program, all viewers, especially those taking prescription or over-the-counter medications, should consult their physician or health care practitioner.
Please note that while prominent lab names are included in this content, we cannot guarantee that these labs offer all the tests mentioned. For confirmation, individuals should contact the labs directly or consult their medical practitioners. The information provided reflects general knowledge at the time of publication and may not include recent updates or emerging research. Readers should verify details with qualified professionals to ensure the most up-to-date and accurate guidance.
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