The Free Thyroxine (FT4) Test is a blood test used to evaluate the function of the thyroid gland. It measures the levels of free thyroxine in the blood, which is the hormone produced by the thyroid gland. The test is primarily used to diagnose and monitor the treatment of hyperthyroidism and hypothyroidism.

Hyperthyroidism is a condition in which the thyroid gland produces too much thyroid hormone, resulting in symptoms such as weight loss, increased heart rate, and anxiety. Hypothyroidism, on the other hand, is a condition in which the thyroid gland does not produce enough thyroid hormone, leading to symptoms such as fatigue, weight gain, and depression.

The Free Thyroxine (FT4) Test is also used to monitor the treatment of thyroid disorders, such as Graves' disease, Hashimoto's thyroiditis, and thyroid cancer. It helps to determine if the treatment is effective in restoring normal thyroid function.

While T4 is produced in greater quantities by the thyroid gland, T3 is the more active form of thyroid hormone, and it is responsible for the majority of the metabolic effects associated with thyroid function.The Free T3 test measures the amount of unbound T3 in the blood, and it is often used to diagnose and monitor thyroid disorders, such as hyperthyroidism and hypothyroidism. The Free T4 test, on the other hand, measures the amount of unbound T4 in the blood, and it is also used to diagnose and monitor thyroid disorders.

MOHO offers the Free Thyroxine (FT4) Test at the lowest cost in Nepal. Book online now and avail of free home sample collection and consultation with top doctors. Our partner labs are NPHL approved, ensuring accurate results. The test is performed using the CLIA method, which is a highly sensitive and specific method for measuring thyroid hormone levels.

In addition, we understand the importance of timely and accurate results. That's why we offer fast turnaround times, with results typically available within 24 to 48 hours. Our team of experienced doctors is also available for consultation to help you interpret your results and provide guidance on next steps.

Category
Biochemistry

Prerequisite
You don't need any special preparation for this test

Normal Range
Free Thyroxine, ng/dL
0-3 days 0.7-2.7 ng/dL
4-30 days 0.8-3.1 ng/dL
1-23 months 0.5-2.3 ng/dL
2-6 years 0.9-1.8 ng/dL
7-11 years 0.9-1.7 ng/dL
12-19 years 0.9-1.6 ng/dL
20 years and older 0.8-1.7 ng/dL
Pregnancy, 1st Trimester 0.9-1.4 ng/dL
Pregnancy, 2nd Trimester 0.7-1.3 ng/dL

Type of sample to be collected
Blood Sample