South · TPO Test (Thyroid Peroxidase Antibody)
TPO Test (Thyroid Peroxidase Antibody) in Texas
This page explains the tpo test (thyroid peroxidase antibody), what it measures, and how to order it. The TPO antibody test measures antibodies that target thyroid peroxidase, an enzyme crucial for thyroid hormone production.
What this test is
Thyroid peroxidase (TPO) antibodies are proteins produced by the immune system that mistakenly attack the thyroid gland. This test detects the presence and level of these antibodies in the blood.
What it measures
- Thyroid Peroxidase Antibodies (TPOAb) — reflects immune system activity against the thyroid gland
What the test involves
This test requires a blood sample, which is typically collected from a vein in your arm during a standard blood draw.
Why it is often ordered
A clinician may order this test to help investigate the cause of an underactive or overactive thyroid. It is often used to support the diagnosis of autoimmune thyroid conditions.
Preparation
Please follow any specific preparation instructions provided by the laboratory. Generally, no special preparation is needed for this test.
How results are reported
Results are typically reported within a few business days. Reference ranges, which indicate what is considered normal, vary by laboratory and should be discussed with your healthcare provider.
Before you go
- Specific preparation instructions
- Typical turnaround time
- How results are reported
Cities
TPO Test (Thyroid Peroxidase Antibody) in Texas communities
Choose your city for local context and to request this test.