In short
- TSH is the usual first thyroid test. It shows whether your thyroid is making too much or too little hormone, but not why.
- Free T4 and free T3 measure the thyroid hormones themselves, and help explain an abnormal TSH.
- Thyroid antibody tests look for autoimmune causes such as Hashimoto’s disease and Graves’ disease.
- The thyroid listings on medicAI say no fasting is needed.
Thyroid tests you can book
- Lab tests60% off
Advanced Thyroid Care
Advanced Thyroid Care is an in-depth hormonal assessment designed to provide a complete and clinically detailed evaluation of thyroid gland function, autoimmune involvement and metabolic impact. A DHA-licensed nurse collects your blood sample at your home, off
AED 292.95
View detailsUsual price AED 733.95 - Lab tests50% off
Thyroid Profile
The Thyroid Profile is a comprehensive blood test that evaluates thyroid gland function, focusing on key hormones that regulate metabolism, energy levels, weight, mood, heart rate and overall endocrine balance. A DHA-licensed nurse collects your blood sample a
AED 124.95
View detailsUsual price AED 250.95
Signs that can point to a thyroid problem
| Underactive thyroid (too little hormone) | Overactive thyroid (too much hormone) |
|---|---|
| Feeling extremely tired, and colder than usual | Nervousness, anxiety, irritability and mood swings |
| Putting on weight, and constipation | Weight loss, and trembling or twitching |
| Low mood, and difficulty concentrating | Difficulty sleeping, and feeling weak or tired |
| Dry skin, dry hair or hair loss, and a hoarse voice | Sensitivity to heat, and a fast or irregular heartbeat |
| Irregular or heavy periods | A swelling in the neck (goitre) |
The NHS notes that underactive thyroid symptoms can be mild and develop slowly. Overactive thyroid is about 10 times more common in women than men. Many of these symptoms have other causes too, which is why a test helps.
What each test measures
- TSH (thyroid-stimulating hormone) is made by the pituitary gland in the brain to tell the thyroid how hard to work. When thyroid hormone runs low, TSH usually rises. When there is too much, TSH falls.
- Free T4 and free T3 are the thyroid hormones in your blood. Doctors use them alongside TSH to understand what is happening.
- Thyroid antibodies, such as anti-TPO and anti-thyroglobulin, check for autoimmune thyroid disease. MedlinePlus explains that Hashimoto’s disease is the most common cause of an underactive thyroid and Graves’ disease of an overactive one.
The Thyroid Profile listing covers TSH, free T3 and free T4. Advanced Thyroid Care adds the two antibody tests.
Preparing for the test
Both thyroid listings say fasting is not required. MedlinePlus notes that some medicines can affect the result, so tell the doctor everything you take, including supplements. Do not stop a medicine unless a doctor tells you to. If you already take thyroid hormone tablets, ask your doctor when to have the test.
To have the sample taken at home, choose a test, add your address and pick a time. Availability depends on your address and shows in the app when you enter it. See what to expect from a home lab test or lab tests at home.
Reading the result with a doctor
A TSH result outside the range does not always mean thyroid disease. MedlinePlus explains that serious illness can lower TSH for a short time, that TSH can be higher in people over 80, and that pregnancy changes it, often a little low in the first three months. A TSH test also cannot show the cause of a thyroid problem, so a doctor may ask for more tests.
People treated for an underactive thyroid have regular blood tests to check the dose is right. If you are pregnant or planning a pregnancy and have a thyroid condition, the NHS advises telling your doctor, because your treatment may need to change.
When to get help
See a doctor if you have symptoms that last, if a result is abnormal, or if thyroid problems run in your family. A GP can review your result by video and refer you on if needed.
Call 998 or go to an emergency department if you have heart palpitations that do not go away, or palpitations with chest pain, shortness of breath or fainting.
Doctors you can book for thyroid tests
Dr Anju Begum, General Practitioner, uniCare Medical CenterGeneral Practitioner · 10 years · Hindi, Urdu, English
Dr. Leena KapoorGeneral Practitioner · 28 years · AED 25 · Hindi, Urdu, English
Dr. Tarun ShuklaGeneral Practitioner · 35 years
Dr. Dany RajakumarGeneral Practitioner · 5 years
Dr. Shilpa Surian, General Practitioner, WeCARE Medical Center LLCGeneral Practitioner · 3 years · AED 45 · English, Malayalam
Dr. Ekramulla Mohamed Ali, General Practitioner, Wecare Medical CenterGeneral PractitionerDoctors are independent. A listing is not a recommendation. Before you book, you can check a doctor's licence in the health authority's public register. See all doctors.
Questions people ask
Do I need to fast before a thyroid blood test?
The Thyroid Profile and Advanced Thyroid Care listings say fasting is not needed. If your sample is also being used for other tests, such as cholesterol, follow the fasting instructions for those.
What does a high TSH mean?
A high TSH often means the thyroid is not making enough hormone, so the pituitary gland is asking it to work harder. A doctor will look at your free T4 and symptoms before deciding what it means for you.
Why test thyroid antibodies?
Antibody tests help show whether an autoimmune condition, such as Hashimoto’s disease or Graves’ disease, is behind a thyroid problem. They are usually done alongside TSH and thyroid hormones.
Can pregnancy affect thyroid results?
Yes. MedlinePlus notes that TSH is often a little low in the first three months of pregnancy. Tell the doctor if you are pregnant so your result is read correctly.
Sources and further reading
- TSH (Thyroid-stimulating hormone) Test (MedlinePlus)
- Thyroid Antibody Tests (MedlinePlus)
- Underactive thyroid (hypothyroidism) (NHS)
- Overactive thyroid (hyperthyroidism) (NHS)
- Heart palpitations (NHS)
Read next
medicAI is not for emergencies. If someone is seriously ill or injured, call 998 or go to the nearest hospital.
This page is general information. It does not replace advice from a doctor who knows your situation. medicAI is a technology platform. Care is given by independent licensed facilities, who are responsible for it and for its outcome.
