The TSI test measures the level of thyroid-stimulating immunoglobulin (TSI) in your blood. High levels of TSI in the blood can indicate the presence of Graves’ disease, which is an autoimmune disorder ...
If you need to take the TSI test before starting your fall classes at Odessa College, the OC Testing Center is hosting a special all-inclusive One Step Shop entry day for entering college from 8 a.m.