TCRN Practice Exam 2026 – Complete Prep for Your Test

The intervention recognized as effective in reducing catheter-associated urinary tract infections (CAUTI) is the proper securing of catheters to prevent movement. Properly securing catheters minimizes the risk of mechanical irritation and movement that can introduce bacteria into the urinary tract. When a catheter is not secured appropriately, it may shift within the bladder or urethra, leading to trauma to the mucosal lining and creating a pathway for pathogens to enter.

Moreover, a well-secured catheter reduces the risk of accidental dislodgment which can disrupt the sterile barrier and increase the risk of infection. This practice aligns with the guidelines and best practices focused on maintaining catheter sterility and integrity throughout the duration of catheterization, thereby reducing the incidence of CAUTI.

The other options do not offer effective measures for CAUTI prevention. For instance, using the largest bore catheter available can increase the risk of trauma and infection. Regularly administering diuretics may not have a direct link to CAUTI prevention but can increase urinary frequency and urgency, potentially contributing to complications. Irrigation of the bladder is typically not recommended for routine CAUTI prevention and can introduce additional risk of infection if not done under specific circumstances.