Final answer:
The nurse should first attempt to reinflate the balloon on the urinary catheter when leakage is reported by the nursing assistive personnel (NAP).
Step-by-step explanation:
The nurse should first attempt to reinflate the balloon on the urinary catheter when leakage is reported by the nursing assistive personnel (NAP). This is because leakage can occur if the balloon is not adequately inflated, causing the catheter to move or slip out of the bladder. By inflating the balloon properly, the catheter can remain securely in place and prevent leakage.