TSH Test
The TSH test is the first-line thyroid screening test. What it measures, normal ranges, what high and low results mean, and when more tests are needed.
Learn moreDedicated Thyroid Care
Thyroid Tests
Understand what each thyroid test measures, when it is used, and how to interpret results.
Free T4 Test
The free T4 test measures the active, unbound thyroid hormone. When it is ordered, how to interpret results, and its role alongside TSH.
Learn moreFree T3 Test
The free T3 test measures the most active thyroid hormone. When it adds information beyond TSH and free T4, and how results are interpreted.
Learn moreTotal T3 Test
The total T3 test measures all triiodothyronine including protein-bound. When it is used, its limitations, and how it differs from free T3.
Learn moreTotal T4 Test
The total T4 test measures all thyroxine including protein-bound. Its limitations vs free T4, and when each is appropriate.
Learn moreAnti-TPO Antibody Test
The anti-TPO antibody test detects autoimmune thyroid disease — the marker for Hashimoto’s thyroiditis. When it is ordered and what results mean.
Learn moreAnti-Thyroglobulin Antibody Test
The anti-thyroglobulin (anti-Tg) antibody test detects another autoimmune thyroid marker and serves as a tumour marker after thyroid cancer treatment.
Learn moreTRAb Test
The TRAb test detects thyroid-stimulating immunoglobulins — the antibodies that cause Graves’ disease. When it is ordered and what results mean.
Learn moreThyroid Ultrasound
Thyroid ultrasound evaluates nodules, goitre and thyroid structure. What it shows, when it is needed, and what the findings mean.
Learn moreThyroid FNAC
Fine needle aspiration cytology (FNAC) samples thyroid nodule cells to check for cancer. How it works, preparation, and what results mean.
Learn moreThyroid Biopsy
Thyroid biopsy types — FNAC (needle) and surgical biopsy. When each is used, what they diagnose, and what happens after results.
Learn moreThyroglobulin Test
Thyroglobulin is a tumour marker used after thyroid cancer surgery. What it measures, when it is checked, and how anti-Tg antibodies affect it.
Learn moreRadioactive Iodine Uptake Test
The radioactive iodine uptake (RAIU) test measures how much iodine the thyroid absorbs. It distinguishes causes of thyrotoxicosis — key for diagnosis.
Learn moreCalcitonin Test
Calcitonin is a hormone made by the thyroid’s C-cells and a marker for medullary thyroid cancer. When it is checked and what results mean.
Learn moreReverse T3 Test
Reverse T3 is an inactive form of thyroid hormone. What the test measures, why it is controversial, and when it is used.
Learn moreThyroid Scintigraphy
A thyroid scan uses a small amount of radioactive tracer to show how the gland functions — useful for nodules and thyrotoxicosis.
Learn moreNewborn Thyroid Screening
Newborn screening for congenital hypothyroidism prevents lifelong disability. How the test works and what happens if it is abnormal.
Learn moreThyroid CT and MRI
CT and MRI are not routine for thyroid problems but help assess large goitres, spread of cancer and pressure on nearby structures.
Learn moreThyroid Genetic Testing
Genetic testing can identify inherited thyroid cancer syndromes and some forms of congenital thyroid disease. Who should be tested.
Learn moreThyroid Elastography
Elastography is an ultrasound technique that measures thyroid tissue stiffness. How it helps assess nodules alongside standard ultrasound.
Learn moreTRH Stimulation Test
The TRH stimulation test assesses how the pituitary responds to TRH. It is rarely used today but helps in selected cases.
Learn moreLaryngoscopy and Vocal Cord Check
Laryngoscopy examines the vocal cords before or after thyroid surgery, or when a voice change needs investigation.
Learn moreThyroid Testing in Pregnancy
Thyroid tests in pregnancy use trimester-specific ranges. Who should be tested, what the results mean and how often monitoring is needed.
Learn moreBone Density Scan in Thyroid Care
Long-standing overactive thyroid or prolonged TSH suppression can thin the bones. When a bone density scan is recommended.
Learn moreFrequently asked questions
Which thyroid test do I need?
For routine screening: TSH ± free T4. For suspected hyperthyroidism: add free T3 and TRAb. For autoimmune evaluation: anti-TPO ± anti-Tg. Your doctor recommends the appropriate panel.
Do I need to fast before thyroid tests?
No — thyroid blood tests do not require fasting. Mention biotin supplements beforehand as they can interfere with some assays.
How long do thyroid test results take?
Most results are available within 1–3 working days; specialized tests may take longer.
What if my thyroid test results are abnormal?
A single abnormal result is usually confirmed with a repeat test. Persistent abnormalities are interpreted with symptoms and clinical context — sometimes additional tests are needed.
Ready to discuss your thyroid health?
Book a specialist consultation — in person or by teleconsultation.