What are the three types of pacemakers?

The correct answer identifies the three types of pacemakers as pacing only, defibrillation, and pacing and defibrillation. This classification is based on the functionality and purpose of different devices used in cardiac rhythm management.

Pacing-only devices are designed solely to deliver electrical stimuli to the heart to maintain an adequate heart rate, often used in cases of bradycardia. Defibrillation devices, on the other hand, are intended to deliver a shock to the heart to restore a normal rhythm in the event of life-threatening arrhythmias like ventricular fibrillation. The combination of pacing and defibrillation offers a dual-function capability, enabling a device to manage both slow heart rates through pacing and life-threatening rapid heart rhythms through defibrillation.

Understanding these types is crucial for clinical practice as it impacts patient management strategies during resuscitation procedures, particularly in emergencies where sudden cardiac events occur.