Mean Residence Time to Last Nonzero Concentration by Extravascular Dose

**Semantic type:** Temporal Concept

**Definition:** Mean residence time (MRT) from the time of dosing to the time of the last measurable concentration for a substance administered by extravascular dosing. Extravascular MRT includes Mean Absorption Time (MAT). (CDISC)

**Synonyms:** - MRT Extravasc to Last Nonzero Conc - MRT Extravasc to Last Nonzero Conc - MRTEVLST