A patient in a wheelchair has a urine collection bag hooked onto the arm rest. What is the most appropriate intervention?
A. Clamp the catheter tubing until the patient is back in the room.
B. Cover the bag with a towel so it is not offensive to others.
C. Move the collection bag below the level of the patient's bladder.
D. Empty the urine collection bag so the urine does not back up into the bladder.