What is a common post-draw instruction to give to patients?

Keeping the bandage on for at least 15 minutes is a commonly recommended post-draw instruction because it helps to minimize bleeding and allows the puncture site to begin healing. This practice is important for promoting clotting and preventing excessive bruising or hematoma formation at the venipuncture site.

By instructing patients to leave the bandage in place for this duration, it ensures that any small bleeding that may occur after the needle is removed is adequately controlled by the compression effect of the bandage. This precaution is particularly significant for individuals who may be on anticoagulant medications or who have a tendency to bruise easily.

In contrast, removing the bandage immediately can lead to reopened bleeding and potential complications. Applying ice, while it may reduce swelling or discomfort, is not a standard post-draw instruction and is typically unnecessary unless there is specific swelling or bruising. Advising patients not to move the arm for a prolonged period is not practical, as it can lead to stiffness and is not a requirement for comfort or healing following a venipuncture.