Pacific · TSI Test - Thyroid Stimulating Blood Test
TSI Test - Thyroid Stimulating Blood Test in Hawaii
TSI Test - Thyroid Stimulating Blood Test can be ordered without a referral, and this guide covers what to expect. This blood test measures thyroid-stimulating immunoglobulin (TSI) levels to help assess thyroid function.
What this test is
Thyroid-stimulating immunoglobulin (TSI) is an antibody that can mimic the action of thyroid-stimulating hormone (TSH). High levels of TSI can indicate an overactive thyroid.
What it measures
- Thyroid Stimulating Immunoglobulin (TSI) — measures antibodies that stimulate the thyroid gland
What the test involves
This test requires a standard blood draw from a vein in your arm.
Why it is often ordered
Clinicians often order this test to help diagnose or monitor Graves' disease, an autoimmune condition affecting the thyroid. It can also be used to evaluate the cause of hyperthyroidism.
Preparation
No specific preparation is usually required for this test. Please follow any instructions provided by the laboratory where you will have your blood drawn.
How results are reported
Results are typically reported within a few business days. Reference ranges, which indicate the expected values for healthy individuals, vary between laboratories.
Before you go
- Turnaround time
- Specific preparation instructions
- How to access your results
Cities
TSI Test - Thyroid Stimulating Blood Test in Hawaii communities
Choose your city for local context and to request this test.