Post-operative abdominal surgery

Judith is a 52-year-old female with two days post-operative abdominal surgery. She has a foley to gravity drainage. While assessing Judith’s vital signs at 2 o’clock, you noticed no urine in the tubing, and there is only a little in the bag. The patient tells you, “I am in pain, and I feel like I need to urinate.” What could be the problem? What should you assess? What should you do? Write a care plan.