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Due to state law, this test can not be shipped to NY state. Our ZRT Essential Thyroid Profile tests the following hormone levels: Thyroid Stimulating Hormone (TSH), Free Triiodothyronine (fT3), Free Thyroxine (fT4) and Thyroid peroxidase (TPO). By testing the levels of these hormones together, ZRT can create a hormone profile for the donor,...