Final answer:
The nurse should inform the client that a Foley catheter allows accurate measurement of urine output during surgery.
Step-by-step explanation:
The most appropriate statement by the nurse regarding the need for a Foley catheter during an abdominal hysterectomy is option D: It allows accurate measurement of urine output during surgery.
A Foley catheter is a thin tube that is inserted into the bladder to drain urine. During surgery, it is important to accurately measure urine output to ensure the patient's fluid balance is maintained. By using a Foley catheter, the nurse can collect and measure the urine output throughout the procedure.