Reverse T3, Serum
Fasting Required: No

Specimen: Blood

Results: 7-10 Business Days

Description: Since thyroid hormone acts like our internal thermostat, thyroid hormones may be suppressed in times of stress. One way this is done is by converting the thyroid hormone T4 into an inactive form of the active T3 hormone called reverse T3. This lowers the amount of available active T3 which can lead to hypothyroid type symptoms. 

Methodology: Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

Alternative Name(s): RT3, Triiodothyronine Reverse, rT3 , Reverse Triiodothyronine, Reverse T3

Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.