Why to get tested?
To screen for and help diagnose thyroid disorders; to monitor treatment of hypothyroidism and hyperthyroidism
When to get tested?
For monitoring treatment: as directed by your healthcare provider
What sample needed?
A blood sample drawn from a vein in your arm or from pricking the heel of an infant
What preparation I need before test?
None needed; however, certain medications can interfere with the TSH test, so tell your health practitioner about any drugs that you are taking. If you take thyroid hormone as treatment for thyroid disease, it is recommended that your blood sample be drawn before you take your dose for that day.