Total Thyroxine test is performed on a sample of blood to measure level of T4 in blood.It is performed to confirm Hyperthyroidism and Hypothyroidism and also during treatment and after treatment of Hyperthyroidism and Hypothyroidism.
Also known as
Total T4, Total Thyroxine, Thyroxine Test
Inform your doctor if you are on any medications, have any allergies or underlying medical conditions before your T4 Test. Your doctor will give specific instructions depending on your condition on how to prepare for T4 Test. 10 to 12 Hours fasting is required before the sample collection.
The normal result for T4 Test for T4 is 4.5 - 11.7 mcg/dl for Unisex gender and for All age groups.