What should a healthcare professional do if the venipuncture site begins to bleed profusely?

When a venipuncture site begins to bleed profusely, the appropriate response is to apply direct pressure and elevate the site. This method helps to control the bleeding effectively by reducing blood flow to the area and allowing the blood vessels to constrict, which can significantly slow or stop the bleeding. Elevation assists in decreasing blood flow to the area due to gravity, further aiding in the control of bleeding.

Applying ice to the site may cause discomfort and does not directly address the bleeding issue. Using a tourniquet above the site can impede blood flow excessively and may lead to complications if applied incorrectly. Continuing the procedure when there's profuse bleeding could exacerbate the situation and lead to more significant complications, such as hemoconcentration or hematoma formation. Therefore, applying direct pressure and elevating the site is the most effective and appropriate response to manage a bleeding venipuncture site.