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FT3stands forFree Triiodothyronine
Full Form of FT3
What is FT3?
FT3, or Free Triiodothyronine, is a key thyroid hormone test that measures the unbound (free) fraction of triiodothyronine in the blood. In India, it is routinely used alongside FT4 and TSH to evaluate thyroid function, particularly in diagnosing hyperthyroidism, hypothyroidism, and monitoring treatment for thyroid disorders. The test is commonly ordered by endocrinologists and general physicians when a patient presents symptoms like fatigue, weight changes, palpitations, or heat intolerance. It is also crucial in managing conditions such as Graves' disease or thyroiditis. FT3 is often included in thyroid profiles during routine health check-ups and is especially relevant for students preparing for medical entrance exams like NEET PG and AIIMS, where thyroid physiology is a core topic. Understanding FT3 levels helps clinicians differentiate between primary and secondary thyroid imbalances, making it an indispensable diagnostic tool in Indian clinical practice.
FT3 का फुल फॉर्म
मुक्त ट्राईआयोडोथायरोनिन
Example
The endocrinologist ordered FT3, FT4, and TSH to confirm the suspected hyperthyroidism in the patient.
FT3 — frequently asked questions
What is the full form of FT3?
FT3 stands for Free Triiodothyronine, a thyroid hormone test that measures the unbound fraction of triiodothyronine in the blood.
What is the normal range of FT3 in India?
The normal range for FT3 is typically 2.3 to 4.2 pg/mL, though it may vary slightly between laboratories.
Why is FT3 tested along with FT4 and TSH?
FT3 is tested with FT4 and TSH to get a complete picture of thyroid function and accurately diagnose conditions like hyperthyroidism, hypothyroidism, or pituitary disorders.