The thyroid gland plays a major role in the metabolism, growth and development of the human body. It helps to regulate many body functions by constantly releasing a steady amount of thyroid hormones into the bloodstream.
Thyroid profile test assesses the functions of the Thyroid gland by measuring the levels of thyroid hormones (T3 and T4) and TSH.
The thyroid profile test is performed:
- To detect thyroid diseases such as thyroiditis, goitre, and thyroid cancer.
- To monitor hypothyroidism and hyperthyroidism.
- To check for congenital hypothyroidism in infants.
8-9 Hrs fasting needed
|Reference Range T4|
|0-5 days||5.0-18.5 mcg/dL|
|6 days-2 months||5.4-17.0 mcg/dL|
|3-11 months||5.7-16.0 mcg/dL|
|1-5 years||6.0-14.7 mcg/dL|
|6-10 years||6.0-13.8 mcg/dL|
|11-19 years||5.9-13.2 mcg/dL|
|Reference Range T3|
|Adult (> or =20 years)||4.5-11.7 mcg/dL|
|Cord blood||14-86 ng/dL|
|0-3 days||96-292 ng/dL|
|4-30 days||62-243 ng/dL|
|1-23 months||81-281 ng/dL|
|2-6 years||83-252 ng/dL|
|7-11 years||92-219 ng/dL|
|12-19 years||83-215 ng/dL|
|20 years and older||80-200 ng/dL|
|Reference Range TSH|
|0-5 days||0.7-15.2 mIU/L|
|6 days-2 months||0.7-11.0 mIU/L|
|3-11 months||0.7-8.4 mIU/L|
|1-5 years||0.7-6.0 mIU/L|
|6-10 years||0.6-4.8 mIU/L|
|11-19 years||0.5-4.3 mIU/L|
|> or =20 years||0.3-4.2 mIU/L|
Type of sample to be collected