Quick Facts
- Sample: Blood
- Fasting: No fasting required; stop biotin at least 72 hours prior to collection; avoid collection during or after heparin administration
- Turnaround: 2-3 days (may take longer based on weather, holiday, or lab delays)
What's Included
- Thyroid Peroxidase (TPO) Ab: Measures antibodies to thyroid peroxidase, an enzyme involved in thyroid hormone production, to help evaluate hypothyroidism and thyroiditis.
- Thyroglobulin Antibody: Measures antibodies against thyroglobulin, a protein used in thyroid hormone production, to help evaluate enlarged thyroid glands (goiters) and follow up on abnormal thyroid test results.
Benefits
- Screens for autoimmune activity affecting the thyroid gland.
- Combines two antibody markers for a broader thyroid picture.
- Supports follow-up evaluation after abnormal T3, T4, or TSH results.
- Requires no fasting, making preparation simple.
- Results typically available within 2-3 days.
Who Is This Test For?
- Individuals experiencing symptoms associated with thyroid dysfunction.
- People with a known autoimmune condition who develop thyroid-related symptoms.
- Those with abnormal T3, T4, or TSH results seeking further evaluation.
- Individuals with a family history of thyroid disorders.
- Anyone wanting a general screening of thyroid-related autoimmune markers.
How It Works
- Order Your Test Online
- Visit a Local Lab
- Get Results Online
FAQ
1. What is the purpose of this test?
This panel measures two thyroid antibodies, Thyroid Peroxidase (TPO) Ab and Thyroglobulin Antibody, to screen for autoimmune activity affecting the thyroid gland. Together, these markers help evaluate signs of chronic thyroid inflammation or dysfunction. This panel does not diagnose a specific thyroid condition on its own.
2. Who would benefit from this test?
This panel may benefit individuals with symptoms commonly associated with thyroid dysfunction, such as fatigue, weight changes, or irregular heart rate. It may also be useful for those with a known autoimmune condition who develop symptoms suggesting thyroid involvement, or anyone seeking a general screening of thyroid antibody levels.
3. When should I order this panel?
You may consider ordering this panel if you are experiencing symptoms that could relate to thyroid function, or as a follow-up when other thyroid tests such as T3, T4, or TSH show signs of dysfunction. It may also support ongoing monitoring for those with a known autoimmune condition.
4. Do I need to fast before this test?
No fasting is required for this test. You should stop biotin consumption at least 72 hours prior to collection, and collection should not occur during or after heparin administration.
5. How quickly will I get results?
Results are typically available within 2-3 days. This may take longer based on weather, holiday, or lab delays.
6. How do I interpret the results?
Patterns across both antibody markers are often more meaningful than any single result on its own. Your healthcare provider can help you understand what your results mean in the context of your overall health and any other thyroid testing you have completed.
Disclaimer: Reference ranges may vary by laboratory. Listed ranges are general guidelines and may differ from those used by the performing lab. Always consult your healthcare provider for interpretation.
7. What should I do if my results are abnormal?
If your results fall outside the expected range, share them with your healthcare provider. They can help determine whether further testing or evaluation is needed based on your full health picture.
8. How often should I get tested?
Testing frequency varies by individual circumstances. Follow up as directed by your healthcare provider, particularly if you have ongoing symptoms or a known autoimmune condition.
9. Why early detection matters
Measuring thyroid antibody levels may support earlier awareness of autoimmune activity affecting the thyroid, allowing you and your healthcare provider to monitor changes over time as part of your broader health picture.
Pre-test preparation
No fasting is required. Patient should stop biotin consumption at least 72 hours prior to the collection. Collection should not occur during or after administration of heparin.
Do not stop prescribed medication unless instructed by your healthcare provider.
