Why get tested?
To screen for and help diagnose thyroid disorders; to monitor treatment of hypothyroidism and hyperthyroidism

When to get tested?
For screening: There is no consensus within the medical community as to the age adult screening should begin or whether screening should be done; however, newborn screening is widely recommended.
For monitoring treatment: as directed by your doctor
Otherwise: when a patient has symptoms of hyper- or hypothyroidism and/or an enlarged thyroid

Sample required?
A blood sample drawn from a vein in the arm or from pricking the heel of an infant