The discount online blood test, Reverse T3 (RT3 or REVT3), is a biologically inactive form of T3. Normally, when T4 is converted to T3 in the body, a certain percentage of the T3 is in the form of RT3.

Estimated time to receive online results is 4-6 days.

Preparation: No special preparation is required.

Please be advised that our services are strictly self-pay and not eligible for submission as a claim to your health insurance provider, medical bill sharing company, Medicare/Medicaid or other third party payor.