What is the most important thing to do after a blood draw?

After a blood draw, applying pressure to the site is crucial for several reasons. It helps to stop any bleeding that may occur at the puncture site, which is important for the patient's safety and comfort. By applying pressure, you reduce the risk of hematoma formation—a collection of blood that can pool under the skin. This also promotes healing of the punctured vein and minimizes any potential complications associated with post-phlebotomy bleeding.

Applying pressure is a step that ensures that the immediately affected area is correctly managed to prevent excessive bleeding. Following this, other important actions such as labeling the tubes, proper disposal of the needle, and documentation can be performed, but these steps occur after ensuring that the patient is stable and that bleeding has been controlled. Properly applying pressure is a vital component of the post-blood draw protocol to ensure a smooth and safe experience for the patient.