What is the primary function of a defibrillator in clinical care?

What is the primary function of a defibrillator in clinical care?

• A. Deliver an electrical shock to restore normal rhythm
• B. Monitor vital signs
• C. Administer medications
• D. Record ECG data

Answer: (A)

When the heart’s electrical activity becomes chaotic, such as in ventricular fibrillation or pulseless ventricular tachycardia, the defibrillator’s main job is to deliver a controlled electrical shock to the heart. This brief, high-energy shock depolarizes the heart muscle all at once, interrupting the abnormal electrical activity so the heart’s natural pacemaker can take over and reestablish a normal rhythm. This rapid intervention is life-saving in cardiac arrest, and it’s why defibrillators are essential tools in resuscitation. Some defibrillators also monitor the heart’s rhythm and record ECG data, but their primary purpose is to deliver the shock when the rhythm is deemed shockable. After defibrillation, CPR and advanced life support are used to support circulation and recovery.

When the heart’s electrical activity becomes chaotic, such as in ventricular fibrillation or pulseless ventricular tachycardia, the defibrillator’s main job is to deliver a controlled electrical shock to the heart. This brief, high-energy shock depolarizes the heart muscle all at once, interrupting the abnormal electrical activity so the heart’s natural pacemaker can take over and reestablish a normal rhythm. This rapid intervention is life-saving in cardiac arrest, and it’s why defibrillators are essential tools in resuscitation. Some defibrillators also monitor the heart’s rhythm and record ECG data, but their primary purpose is to deliver the shock when the rhythm is deemed shockable. After defibrillation, CPR and advanced life support are used to support circulation and recovery.