a nurse is assisting the physician conducting a cystogram. the client has an intravenous (iv) infusion of d5w at 40 ml/hr. the physician inserts a urinary catheter into the bladder and instills a total of 350 ml of a contrast agent. the nurse empties 500 ml from the urinary catheter drainage bag at the conclusion of the procedure. how many milliliters does the nurse record as urine?