Final answer:
When a valid Do Not Resuscitate (DNR) order is presented during a resuscitation attempt, the correct course of action is to continue resuscitation while seeking guidance from medical control.
Step-by-step explanation:
When a valid Do Not Resuscitate (DNR) order is presented by a family member during a resuscitation attempt, the correct course of action is to continue resuscitation while contacting medical control to seek guidance on whether to stop or continue resuscitation. The DNR order indicates that medical personnel are not to take steps to revive or resuscitate the patient in the event of cardiac arrest or cessation of breathing. However, the decision to stop or continue resuscitation in the presence of a DNR order should be made in consultation with medical control in order to ensure compliance with applicable protocols and legal requirements.