What must be done before placing cardiac leads if resuscitation is to be withheld?

The correct approach before placing cardiac leads when resuscitation is to be withheld is to consult with On-Line Medical Control. This is crucial because it provides an opportunity for trained medical professionals to review the situation and guide the responders on the appropriate course of action based on established protocols and guidelines. Consulting medical control ensures that any decisions made are in line with best practices and provide an extra layer of oversight in patient care.

In situations where resuscitation may not be indicated, medical control can assist in confirming that the guidelines for withholding lifesaving interventions are followed appropriately. This step is vital in emergency medical service protocols, as it encompasses legal, ethical, and medical considerations regarding the patient's care. By involving medical control, it helps ensure that the decision to withhold resuscitation is supported by clinical judgment, thus safeguarding both the patient’s rights and the legal responsibilities of the responding personnel.