When preparing to insert an IV catheter, which step should be performed first?

The first step in preparing to insert an IV catheter is to cleanse the site with an antiseptic swab. This action is essential because it reduces the risk of introducing pathogens into the bloodstream, thereby preventing infection. Proper skin antisepsis is crucial for maintaining aseptic technique during the procedure and is an established standard of care in venipuncture and IV catheter placement.

Prior to applying the tourniquet, cleansing the site ensures that the area is sterile, providing a clean environment for the subsequent steps, including catheter insertion. Following this step ensures that the process remains a safe and effective practice, safeguarding the patient's health during the procedure.