What thyroid tests measure
TSH is commonly used as the first screening marker. T3 and T4 provide additional information about thyroid hormone levels when your doctor needs a broader profile.
When doctors may advise thyroid testing
Thyroid testing may be advised for fatigue, weight changes, hair fall, constipation, palpitations, menstrual irregularity, infertility evaluation, pregnancy monitoring or medication follow-up.
How to prepare
Carry previous thyroid reports and medicine details. If you take thyroid medicine, ask your doctor whether the blood sample should be given before or after the dose.
Related tests
Depending on your situation, doctors may add Anti-TPO, vitamin levels, CBC, lipid profile or sugar tests for a wider health assessment.
Frequently asked questions
Thyroid tests usually do not need fasting, but follow your doctor’s instructions if other blood tests are combined.
Home blood collection may be available for thyroid tests. Confirm timing and preparation while booking.
Medical disclaimer
This article is for patient education only. It does not replace examination, diagnosis or treatment by a qualified doctor. For severe symptoms or emergency warning signs, seek urgent medical care.