Reverse T3 Blood Test

Thyroid function test: diagnose hypothyroidism or hyperthyroidism in conjunction with T4 result. Acute or chronic stress or illness favors the formation of RT3 (rather than T3): whereas, T4 concentrations remain essentially unchanged.

Thyroid function test: diagnose hypothyroidism or hyperthyroidism in conjunction with T4 result. Acute or chronic stress or illness favors the formation of RT3 (rather than T3): whereas, T4 concentrations remain essentially unchanged.