TPO

The TPO test measures the level of thyroid peroxidase antibodies in your blood. TPO is an enzyme normally found in the thyroid gland that plays a crucial role in the production of thyroid hormones. If your immune system mistakenly attacks this enzyme, it can lead to chronic inflammation and thyroid damage. This test is the primary tool for diagnosing autoimmune thyroid conditions.

What This Test Covers

• TPO Antibodies: Detects the specific antibodies that signal an autoimmune response against the thyroid.

• Autoimmune Identification: Helps distinguish between standard thyroid imbalances and autoimmune diseases like Hashimoto’s or Graves’ disease.

Why Order This Test?

• Diagnose Hashimoto’s Disease: This is the most common cause of hypothyroidism in the United States; a positive TPO test is a key diagnostic marker.

• Investigate Enlarged Thyroid: Often ordered if a physical exam reveals a goiter (swelled thyroid) or nodules.

• Fertility and Pregnancy: High TPO levels can sometimes impact reproductive health or increase the risk of pregnancy complications.

• Unexplained TSH Shifts: If your TSH levels are fluctuating or abnormal, this test helps determine if the root cause is an immune system error.

Fast and Private Results

• Preparation: No fasting is required for this test.

• Turnaround Time: Results are typically available within 24 to 48 hours.

• Confidential: Your results are delivered securely to your private portal and are not shared with insurance providers.