Final answer:
A Do Not Resuscitate (DNR) order means that no resuscitative measures, including chest compressions, defibrillation, and Advanced Life Support, should be taken during a cardiopulmonary arrest.
Step-by-step explanation:
A Do Not Resuscitate (DNR) order is a legal document in which a person states their wish not to receive cardiopulmonary resuscitation (CPR) if their heart stops beating or they stop breathing. This pertains specifically to actions taken during a cardiopulmonary arrest, where measures such as chest compressions, defibrillation, intubation, or drugs to restart the heart would typically be employed.
Therefore, the answer is D) All of the above. A DNR order would not allow any of those actions, including chest compressions, defibrillation, or providing Advanced Life Support (ALS).