What technique should be employed to control bleeding after a venipuncture?

Applying pressure with gauze is the proper technique to control bleeding after a venipuncture. This technique is crucial because it helps to promote clot formation at the puncture site by applying direct pressure. The pressure decreases blood flow to the area, thereby reducing the risk of excessive bleeding. Additionally, it assists in the prevention of hematoma formation, which can occur if blood leaks into the surrounding tissue due to a failed attempt at hemostasis.

The act of wiping the area with alcohol is only intended for cleaning prior to the procedure; it does not aid in controlling bleeding afterward. Using a tourniquet is primarily utilized to engorge the veins and make them more visible and accessible for drawing blood, not for post-procedure bleeding control. Applying ice may reduce swelling or numb pain but does not effectively address bleeding at the site of the venipuncture.

Therefore, applying pressure with gauze is the best and most effective method to ensure the bleeding stops promptly and safely after a venipuncture.