Note: Your progress in watching these videos WILL NOT be tracked. These training videos are the same videos you will experience when you take the full Family First Aid Level 2 (VTQ) program. You may begin the training for free at any time to start officially tracking your progress toward your certificate of completion.
Knowing how the heart functions and the impact of cardiac arrest is crucial for delivering effective CPR. You can keep blood circulating with proper compressions until a defibrillator becomes available.
The heart's natural pacemaker, the Sinoatrial Node, sends regular electrical impulses from the top chamber (Atrium) to the bottom chamber (Ventricle). This process keeps the heart pumping blood. In cardiac arrest, this normal functioning is disrupted, often due to electrolyte imbalances, potassium interference, or heart-related issues.
During cardiac arrest, the heart's electrical pathways are disrupted, causing the heart to experience ventricular fibrillation or ventricular tachycardia. In this state, defibrillation is necessary to restore normal heart function.
While waiting for an Automated External Defibrillator (AED), perform effective CPR:
AEDs work by passing electricity through the heart, momentarily stunning it and allowing the heart's pacemaker to restore normal function. In cases of cardiac arrest due to a lack of oxygen, the AED may indicate that no shock is necessary. Continue CPR and monitor the patient until emergency services arrive.
Remember: Anyone can perform CPR. The key is to maintain the correct rate and depth of compressions.
