A nurse is assessing a client who is postoperative following abdominal surgery and has an indwelling urinary catheter that is draining dark yellow urine at 25 mL/hr. Which of the following interventions should the nurse anticipate?

A. Continuous bladder irrigation is not appropriate unless the client has a condition like post-op bleeding from bladder surgery. B. Low urine output (oliguria) of <30 mL/hr and dark yellow urine suggest dehydration or decreased kidney perfusion, which can be corrected with IV fluid administration. C. Clamping the catheter could worsen urinary retention and is not appropriate. D. A urine culture is needed only if infection is suspected, but this scenario suggests dehydration, not infection.