Aclient who had a hysterectomy 2 hours ago is returning to the postsurgical unit from the recovery room. the nurse is assessing the client. the vital signs are: temperature, 99° f (32° c); pulse, 98 bmp; respirations, 20 breaths/min; bp, 100/65 mm hg. the urinary catheter is draining freely, and the client wants to try voiding without the catheter. the iv is infusing at 60 gtt/min. the perineal pad is saturated with bright red blood. the nurse reviews the progress notes from the recovery room (see notes). what should the nurse do first?