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Choose collection locationEndocrinology · Individual laboratory test
Thyroid Profile, Free
This profile combines TSH with free T4 and free T3. The free values describe the portions circulating independently of carrier proteins.
Price for this test on its ownAED 249Test price AED 149
Clinical authorDr Nirupama SabhapathySpecialist Clinical Pathology
- Sample
- Serum
- Laboratory turnaround
- 24 hours
- Collection
- Dubai
- Laboratory
- Intel Lab
Understanding the test
What does the Free Thyroid Profile test measure?
Also called Free T3, T4 & TSH
A free thyroid profile may be requested when symptoms and TSH do not tell the whole story. It measures the pituitary signal and two circulating hormone fractions.
When it may be requested
Checking the gland and its signal
TSH and the free thyroid hormone concentrations show different parts of the same feedback system.
Reviewing an unexpected value
The pattern helps a clinician decide whether a repeat specimen or a different investigation is useful.
Inside this test
What the laboratory looks for
In this test
- Thyroid stimulating hormone (TSH)
- Free thyroxine (FT4)
- Free triiodothyronine (FT3)
Before your sample
Prepare for collection
SpecimenSerum
Your checklist
No fast is usually needed. Confirm timing relative to your thyroid tablet and tell the team about biotin, which can affect some assay methods. Use similar timing for repeat monitoring.
A clinician takes a small sample of blood from a vein. The laboratory uses serum, the liquid separated from the blood after it clots.
Smart Report
Understanding your result
24 hoursLaboratory turnaround
Result guideThyroid Profile, Free
Reading your result
Patterns across TSH, free T4 and free T3 are assessed together. Acute illness and some medicines or supplements can affect the measurements.
What can affect it
- Acute illness, certain medicines and assay interference may affect a thyroid profile.
From sample to follow-up
Your testing journey
Laboratory testThyroid Profile, Free
- Specimen
- Serum
- Turnaround
- 24 hours
Open your laboratory report
Look for Thyroid Profile, Free in your report. Use the sample type and collection time when comparing it with an earlier report.
Explore Smart Report
Discuss the next step
Tell the clinician the time of your last thyroid tablet and any biotin use when comparing the three values with previous results.
Clinical expertise
Your laboratory team
Patient questions
Before you book
Why look at the three values together?
TSH is the signal from the pituitary. Free T4 and free T3 reflect circulating thyroid hormones. Their pattern helps your clinician investigate a result that looks unexpected on its own.
What does a low TSH with high free T4 mean?
A suppressed TSH with high free hormones suggests an overactive thyroid. The commonest cause is Graves' disease; others are a toxic nodule or multinodular goitre, thyroiditis where stored hormone leaks from an inflamed gland, too high a dose of thyroid medication, or excess iodine from contrast dye or supplements. Your doctor uses antibodies or a scan to tell these apart.
Can biotin supplements affect thyroid test results?
Yes. High-dose biotin, often found in hair, skin and nail supplements, interferes with several thyroid assays and can produce a convincingly abnormal set of results in someone whose thyroid is normal. If you take biotin, mention it; your doctor may advise pausing it for a short period before the sample.
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Your next step
Free Thyroid Profile test at home.
Sources & further reading
Written by Dr Nirupama Sabhapathy, Specialist Clinical Pathology. Medically reviewed by Dr Joyce Jose, Specialist Clinical Pathology, on .
Catalogue information and AED price checked on 2 November 2026. Clinical suitability, preparation, collection arrangements and turnaround are confirmed for your selected test.