This test measures the total amount of circulating thyroxine in your blood. Thyroxine, a hormone produced by the thyroid, is also known as T4. A high value can indicate hyperthyroidism, a low value can indicate hypothyroidism. Total T4 levels can be elevated due to pregnancy, and other high estrogen states, including use of estrogen replacement or birth control pills.
FAQS
AM I REQUIRED TO FAST?
No
IS A DOCTOR’S ORDER REQUIRED?
No. You do not need to provide a doctor’s order to get lab testing done at Advanced Practice Clinic.
DO I NEED TO MAKE AN APPOINTMENT?
No. You can walk in for same-day testing. We make it easy for you by offering work-friendly hours.
IF I HAVE QUESTIONS ABOUT MY TESTS RESULTS WHO SHOULD I CONTACT?
We recommend you share your results with your healthcare provider.
