Ideal Patient: Thyroid Patients
Testing Recommended: As needed - Thyroid Patients
Testing Time*:30 Mins
A T4 test measures the blood level of the hormone T4, also known as thyroxine, which is produced by the thyroid gland and helps control metabolism and growth. The T4 test is performed as part of an evaluation of thyroid function.
*Testing times are subject to change depending on the time of arrival and availability