Thyroid Antibody - anti-TPO
The Thyroid Antibody Test measures the presence of antibodies targeting thyroid peroxidase (TPO), an enzyme crucial for thyroid hormone production. Elevated levels of these antibodies can indicate autoimmune thyroid diseases such as Hashimoto's thyroiditis (hypothyroidism) and Graves' disease (hyperthyroidism).
Test details
Sample type
Blood
Time of day
No specific time required
Fasting required
No
Results timeframe
Within 7 days
Preparation
No special preparation required
What's measured in this test
Thyroid Peroxidase Ab
Checks for autoimmune thyroid disease.
Common reasons for testing
- Evaluating Thyroid Dysfunction – Assists in diagnosing the cause of abnormal thyroid hormone levels.
- Assessing Autoimmune Thyroid Disorders – Identifies conditions like Hashimoto's thyroiditis.
- Monitoring Thyroid Disease Progression – Tracks changes in antibody levels over time to evaluate disease activity.
- Family History of Thyroid Disorders – Screens individuals with a family history of autoimmune thyroid diseases.
- Unexplained Symptoms – Investigates symptoms such as fatigue, weight changes, or mood disturbances that may be related to thyroid dysfunction.