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T4 Free Thyroxine Test


This is the Free T4 test

You can now book lab tests online and have samples collected from your home. Home collection for this test is available in multiple cities.

Cost of test :
₹275

₹248

This test is done as part of an evaluation of thyroid function. Your doctor may order this test if you have signs of a thyroid disorder. Thyroid function is complex and depends on the action of many different hormones, including thyroid-stimulation hormone (TSH) and T3, (triiodothyronine). T4 levels are important, because T4 increases numerous numerous substances that produce energy for the body. Most T4 is transported by proteins. If T4 is not attached to a protein, it is called "free" T4. Conditions under which the test may be performed: Hypothyroidism-primary Hypothyroidism-secondary Thyrotoxic periodic paralysis