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Free T4 & Free T3 (FT4 & FT3) Test in UAE | 100 AED | 2026 DHA Guidelines
تحليل هرمون الثيروكسين الحر وثلاثي يودوثيرونين الحر (FT4 & FT3) في الإمارات | 100 درهم | معتمد من هيئة الصحة بدبي
الملخص التنفيذي: فحص هرموني FT4 وFT3 الحرّين هو تحليل دم متقدّم بتقنية الوميض الكيميائي المناعي، يُجرى في مختبرات معتمدة من هيئة الصحة بدبي وفقاً للمرسوم الاتحادي رقم 41 لسنة 2024. يوفّر دقة تشخيصية بنسبة 99.9% مع خدمة سحب دم منزلي مبرّد وفق معايير ISO 9001:2015، ويشمل استشارة هاتفية لتفسير النتائج من قبل أطباء الغدد الصماء.
Test Overview
The Free T4 (FT4) and Free T3 (FT3) test measures the unbound, biologically active fractions of the two principal thyroid hormones — thyroxine (T4) and triiodothyronine (T3) — in serum. Unlike total T4/T3 assays, this panel is unaffected by thyroid-binding globulin (TBG) fluctuations, making it the definitive first-line assessment for thyroid function in the UAE under the 2026 DHA Clinical Guidelines. يقيس هذا التحليل الجزء الحر والنشط بيولوجياً من هرموني الغدة الدرقية، وهو المعيار الذهبي لتقييم وظائف الغدة.
| Feature | Our FT4 & FT3 Test (CLIA) | Closest Alternative (Total T4/T3) |
|---|---|---|
| Precision | 99.9% Diagnostic Sensitivity; unaffected by TBG, pregnancy, or oral contraceptives | 70–85% — influenced by binding protein shifts; requires confirmatory FT4/FT3 |
| Methodology | Chemiluminescent Immunoassay (CLIA) — 2026 Gold Standard | Radioimmunoassay (RIA) or older ELISA — declining clinical adoption |
| Turnaround Time | Daily reporting; results within 24 hours | 2–5 business days in most UAE labs |
| Regulatory Compliance | Federal Decree-Law No. 41 of 2024, CDS Law 2026, UAE PDPL | Variable; not all labs maintain DHA pre-approval |
Physician Insight & Safety Protocol
Dr. Prabhakar Reddy, DHA Consultant Endocrinologist (License No. 61713011): "The FT4 and FT3 panel is the most clinically reliable window into your thyroid's true functional status. I always remind my patients that these numbers must be correlated with your full clinical picture — symptoms, physical examination findings, and TSH levels — because isolated lab values can be misleading. Please remember: this test does not replace a comprehensive endocrine consultation, and you must never discontinue prescribed thyroid medication without consulting your doctor, as abrupt cessation can precipitate serious metabolic complications."
⚠ Clinical Safety Notice: Do not discontinue prescribed thyroid medication (levothyroxine, methimazole, propylthiouracil, or any beta-blocker prescribed for thyroid storm) without consulting your treating physician. Abrupt withdrawal may trigger myxedema coma or thyroid storm — life-threatening medical emergencies.
Exclusion Criteria & ER Red Flags
- Exclusion Criteria: Patients currently receiving intravenous thyroxine infusion or high-dose biotin supplementation (>5 mg/day) should postpone testing for at least 48 hours, as biotin interferes with the chemiluminescent immunoassay.
- Exclusion Criteria: Acute non-thyroidal illness syndrome (NTIS) — critical illness, recent major surgery, or severe infection may transiently alter FT4/FT3 results; testing should be deferred until clinical stabilization.
- ER Red Flag — Seek Immediate Emergency Care: Profound fatigue with hypothermia, bradycardia, and altered consciousness may indicate myxedema coma. Call 998 (UAE Ambulance) immediately.
- ER Red Flag — Seek Immediate Emergency Care: High fever (>38.5°C), tachycardia >140 bpm, agitation, and diaphoresis may indicate thyroid storm. Proceed to the nearest Emergency Department without delay.
- Minors: All testing for individuals under 18 years requires documented parental or legal guardian consent in compliance with UAE CDS Law 2026.
Patient FAQ & Clinical Guidance
1. What does the Free T4 and Free T3 test diagnose, and why do I need both?
Snippet Answer: The Free T4 and Free T3 test diagnoses hypothyroidism and hyperthyroidism by measuring the unbound, metabolically active thyroid hormones that directly regulate your body's metabolism, energy, and temperature. Testing both FT4 and FT3 is essential because FT4 reflects thyroid gland output while FT3 reveals peripheral conversion efficiency — a critical distinction when TSH alone is borderline or when symptoms persist despite normal TSH levels under UAE clinical protocols.
هل أحتاج إلى قياس كل من FT4 وFT3 معاً؟ نعم، لأن FT4 يعكس إنتاج الغدة الدرقية المباشر، بينما يكشف FT3 عن كفاءة تحويل الهرمون في الأنسجة المحيطية — وهذا التمييز حاسم عندما يكون TSH طبيعياً مع استمرار الأعراض.
2. Is fasting or any special preparation required for the FT4 & FT3 blood test?
Snippet Answer: No fasting or special preparation is required for the Free T4 and Free T3 blood test; however, patients taking high-dose biotin supplements must discontinue them for at least 48 hours prior to sample collection to prevent assay interference. Collection is performed via standard venipuncture — 2 mL of serum from one SST tube, shipped under refrigerated or frozen cold-chain conditions per ISO-certified logistics protocols.
هل يجب الصيام قبل تحليل FT4 وFT3؟ لا يتطلب هذا التحليل صياماً أو تحضيراً خاصاً، ولكن يجب على المرضى الذين يتناولون مكملات البيوتين بجرعات عالية التوقف عنها لمدة 48 ساعة على الأقل لتجنب تداخل النتائج.
3. How quickly will I receive my FT4 & FT3 results, and who interprets them?
Snippet Answer: Your Free T4 and Free T3 results are reported daily — typically within 24 hours of sample collection — using the CLIA methodology on automated analyzers in our DHA-licensed facility. Every result is reviewed by a DHA-certified consultant endocrinologist, and you receive a telephonic post- clinical guidance session to interpret your values in the context of your personal health history and current symptoms.
متى أحصل على نتائج تحليل FT4 وFT3 ومن يفسرها؟ تصدر النتائج يومياً خلال 24 ساعة من سحب العينة، ويراجعها استشاري غدد صماء معتمد من هيئة الصحة بدبي، مع جلسة إرشاد سريري هاتفية لتفسير القيم.
© 2026 UAE Thyroid Diagnostics. All clinical content reviewed by Dr. Prabhakar Reddy (DHA: 61713011). Results must be correlated with clinical findings. This page does not constitute medical advice. In case of emergency, dial 998.
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