A、CliEnt DiAgnosED with A pEptiC ulCEr unDErgoEs An uppEr gAstrointEstinAl EnDosCopy to hElp thE physiCiAn visuAlizE thE ulCEr’s loCAtion AnD sEvErity. immEDiAtEly AFtEr thE EnDosCopy, whAt woulD BE A priority For thE nursE to AssEss A、rEturn oF thE gAg rEFlEx. B、BowEl sounDs. C、pEriphErAl pulsEs. D、intAkE AnD output.