Direct Care Labs

Free T4

Free T4 (Thyroxine) Test

$25.00

Home » Hormone Tests » Free T4 (Thyroxine) Test

Assesses the level of active thyroid hormone (T4) in your blood to help diagnose thyroid disorders.

Sample Type: Blood

Preperation: No Preperation Required

Sample Collection: In Person

ABOUT FREE T4 TESTS

The Free T4 test measures the unbound (free) form of thyroxine, the primary hormone produced by the thyroid gland. Free T4 is the portion available to enter tissues and regulate metabolism. This test is commonly used alongside TSH and other thyroid tests to diagnose hypothyroidism, hyperthyroidism, and to monitor treatment effectiveness.

This test is for you if you’re experiencing symptoms like fatigue, weight changes, depression, or anxiety, or if you’re being treated for a thyroid condition.

The test measures the free (active) form of T4 hormone circulating in your blood.

It helps identify whether your thyroid is producing too much or too little hormone and assists in diagnosing conditions like hypothyroidism or hyperthyroidism.

No special preparation is needed. You may take this blood test at any time unless advised otherwise by your provider.

HOW DIRECT LABS WORK

01.
Schedule An Appointment

Select your desired lab test(s) and book a time to come in that’s convenient.

02.
Sample Collection

Complete your test sample collection during your scheduled appointment.

03.
Get Your Results

We will promptly send your test results via your desired method of notification.

Clear and comprehensible results

Your results will be securely shared via email. You will receive an email notification when your results are ready, and you can access them on your smartphone, tablet, or desktop.

BROWSE FEATURED TESTS

Lab services are available only for those paying directly and not seeking insurance reimbursement.