Which factor contributes to the risk of CAUTI?

The factor that significantly contributes to the risk of Catheter-Associated Urinary Tract Infections (CAUTI) is not maintaining a closed system. A closed system minimizes the risk of contamination, as it prevents pathogens from entering the urinary tract through the catheter. When the system is not maintained—such as by disconnecting the catheter or using non-sterile equipment—bacteria can more easily enter the urinary tract, leading to infections.

In contrast, external catheters are generally associated with a lower risk of infections compared to internal catheters, particularly if they are used correctly. The age of the patient can influence infection risk, but younger patients are often not considered at higher risk for CAUTI compared to older populations with comorbidities. Finally, regular catheter changes, when performed appropriately and under sterile conditions, can actually reduce the risk of infection rather than contribute to it.