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TSI (Thyroid Stimulating Immunoglobulin)


Blood Test Types

Lab Test Category
This lab test can be purchased without a physician and drawn at a Quest Diagnostics location. A small draw fee of $ 8 will be applied at checkout. There are no other "hidden" fees unless noted on the lab test.
Currently, NY, NJ, and RI state laws prohibit direct-access testing. This lab test cannot be conducted at lab locations within these states at this time.

TSI (Thyroid Stimulating Immunoglobulin)

TSI stands for thyroid stimulating immunoglobulin. TSI tells the thyroid gland to swell and release excess amounts of thyroid hormone into the blood.

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