A nurse is caring for a client who has an indwelling catheter with a urinary drainage system. Which of the following actions should the nurse take?

A. Secure the tubing with adhesive tape to the lower abdomen: Properly securing the catheter tubing prevents tension on the catheter, reduces the risk of accidental dislodgment, and helps maintain a closed drainage system, which decreases the risk of infection. B. Instruct the client to hold the drainage bag at waist height when ambulating: The drainage bag should always be kept below the level of the bladder to maintain proper urine flow and prevent backflow, which increases the risk of infection. Holding it at waist height is unsafe. C. Coil the tubing on the bed above the collection bag: Placing tubing above the collection bag can allow urine to flow back toward the bladder, increasing the risk of urinary tract infection. Tubing should remain below bladder level. D. Collect a sterile specimen from the urinary drainage bag: Sterile urine specimens should be obtained from a sampling port on the catheter using aseptic technique, not directly from the drainage bag, to avoid contamination.