Expert answer:
The reference values of the exam T4 may vary depending on the method and reagent used, therefore, these values should be clearly stated in the results reports of laboratory tests.
Newborns: 2.6 to 6.3 ng / dL
Adults: 0.8 to 2.7 ng / dL
The T4 test is the dosage of a hormone produced by the thyroid gland, known as thyroxine.
The interpretation of the results of the examination should be performed by the doctor who requested it, together with the history and clinical examination. For more information, see a general practitioner or endocrinologist.
