CPT CODE: 84439
A T4 test measures the level of T4 in your blood. Too much or too little T4 can be a sign of thyroid disease. A Free test measure the amount of T4 floating in the blood stream.
There are no reviews yet.
Your email address will not be published. Required fields are marked *
Your review *
Save my name, email, and website in this browser for the next time I comment.