While inserting a urinary catheter, which symptom requires immediate intervention?

Resistance when inflating the balloon of a urinary catheter indicates a potential issue that requires immediate intervention. The balloon is designed to hold the catheter in place within the bladder by inflating with sterile water after proper placement. If there's resistance when attempting to inflate the balloon, it may suggest that the catheter is not correctly positioned within the bladder, potentially indicating that it is lodged in the urethra or that there may be trauma to the bladder wall. This situation can lead to complications such as bladder distension, pain, or even injury. Therefore, it is crucial to stop the inflation and reassess the catheter's placement before proceeding.

The other symptoms listed do not indicate an immediate concern. A brief pinching sensation can be a normal part of catheter insertion due to the manipulation of tissues but does not necessarily require immediate action. Feeling the need to urinate is also common during catheterization as the bladder becomes irritated, and proper positioning of the patient's labia is important for ensuring a sterile procedure but does not signal a complication requiring urgent intervention.