LT
LabTestUAE
⚗️ Hormones

Free Thyroxine (FREE T4)

الثيروكسين الحر (T4 الحر)

Sample Type

🧪 Blood

Results In

⏱ 1 Days

Fasting

✅ Not Required

Parameters

📊 1

What is Free Thyroxine (FREE T4)?

This test measures the active, unbound form of a key thyroid hormone called T4 in your blood. It helps assess how well your thyroid gland is functioning and producing hormones.

Why is this test important?

It is crucial for diagnosing and monitoring thyroid disorders like hyperthyroidism (overactive thyroid) or hypothyroidism (underactive thyroid). Free T4 reflects the amount of hormone available for your body's tissues to use.

How to Prepare

No special preparation required.

Medically reviewed by Dr. Reena Bhaisare, Specialist – Clinical Pathology (DHA No. 06420338-001). Samples are analysed at Lifenity Genomic Laboratory DMCC, Jumeirah Lake Towers (JLT), Dubai, where Dr. Reena Bhaisare authenticates each report. About our laboratory and medical review

Frequently Asked Questions

Do I need to fast before my blood test?▼
It depends on the test. Tests like lipid profile and fasting blood sugar require 10-12 hours of fasting. Tests like CBC, vitamin D, and thyroid do not require fasting. Each test page on our website clearly states the fasting requirements.
How soon will I receive my results?▼
Most routine tests have results within 24-48 hours. Some specialized tests take longer. Each test page shows its expected turnaround time, and we will let you know when your report is ready.
Are your labs licensed?▼
Yes. LabTestUAE is operated by MEDIC (Medical Diagnostic and Imaging Centre Polyclinic), which holds Dubai Health Authority (DHA) health facility licence 0045588, with home healthcare endorsed as an additional service. The Sharjah laboratory in Al Nahda is licensed by the UAE Ministry of Health and Prevention (MoHAP), licence 8788. Samples are analysed at our partner laboratory, Lifenity Genomic Laboratory DMCC in Jumeirah Lake Towers, Dubai (DMCC commercial licence 867782), and every report is authenticated by its specialist clinical pathologist, Dr. Reena Bhaisare (DHA No. 06420338-001). You can check the DHA licence on the DHA Sheryan facility search.

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Medical Disclaimer: The information on this page is for educational purposes only and should not be considered medical advice. Always consult your physician or qualified healthcare provider for diagnosis and treatment. Test results should be interpreted by a qualified medical professional.