Description: The Thyroid Stimulating Hormone (TSH test) test and Free Thyroxine (T4 test) test may be used to help diagnose thyroid disorders such as hypothyroidism and hyperthyroidism. The TSH and Free T4 test may also be used to assist diagnosing infertility issues in women or evaluate thyroid function. Turnaround time for the TSH and Free T4 test is typically 1 business day.
Requirements: This thyroid test has no fasting requirements. Collection for the TSH and Free T4 test should not occur during or after the administration of heparin.