Which component is NOT part of the Oxygen Delivery System?

The component that is not part of the Oxygen Delivery System is the defibrillator. The Oxygen Delivery System typically comprises components that are directly involved in providing supplemental oxygen to a patient in need.

The oxygen cylinder serves as the storage for medical oxygen, while the pressure regulator controls the flow and pressure of the oxygen as it's released from the cylinder. A resuscitation mask, which is often used in conjunction with the oxygen delivery system, aids in delivering oxygen directly to the patient's airway during resuscitation efforts.

In contrast, the defibrillator is a device used to restore a normal heart rhythm by delivering a dose of electrical energy to the heart. Although it may be used in emergency situations alongside the oxygen delivery system, it does not function as a component of that system. Instead, it plays a different role in resuscitation protocols, specifically in the context of cardiac emergencies. Thus, recognizing the distinct purpose of each device clarifies why the defibrillator does not belong to the Oxygen Delivery System.