T3 Test

The T3 test, also known as the triiodothyronine test, is a blood test that measures the levels of triiodothyronine (T3), a thyroid hormone, in the bloodstream. T3 is one of the two main thyroid hormones produced by the thyroid gland, and it plays a crucial role in regulating metabolism, growth, and development in the body. The T3 test is commonly used to assess thyroid function and diagnose thyroid disorders. Abnormal levels of T3 can indicate an overactive thyroid (hyperthyroidism) or an underactive thyroid (hypothyroidism).