Final answer:
Catheterizing a patient requires keeping the catheter tip sterile as part of aseptic technique to avoid infections and prevent sepsis.
Step-by-step explanation:
When catheterizing a patient, it is crucial that the tip of the catheter must be kept sterile to prevent infection. This procedural step adheres to aseptic technique, which is necessary to ensure a sterile environment and prevent sepsis, a serious medical condition that can result from contamination. Maintaining the sterility of the catheter tip is a fundamental aspect of infection control during the catheterization process.