Final answer:
Cardiac arrest requires immediate action with CPR and possibly an automated external defibrillator (AED) to increase survival chances. Proper technique and training are critical in applying CPR to prevent further injury. AEDs provide instructions and deliver shocks to correct heart rhythms in emergencies.
Step-by-step explanation:
Cardiac arrest occurs when the heart stops pumping blood effectively, necessitating immediate cardiopulmonary resuscitation (CPR). The objective of CPR is to manually compress the heart to push blood through the pulmonary and systemic circuits, particularly to the brain to prevent irreversible damage. Compressions should be at least 5 cm deep and at a rate of 100 compressions per minute. CPR continues until the patient regains a heartbeat or is declared dead by a professional.
Proper CPR technique is critical as incorrect application can cause serious injury, like broken ribs or liver damage. Training and certification are thus essential, available through various institutions. Additionally, automated external defibrillators (AEDs) are devices located often in public spaces that provide verbal instructions and can deliver a shock to correct abnormal heart rhythms in emergencies.
Knowing CPR and the use of AEDs can significantly increase the survival chances during cardiac emergencies. These lifesaving techniques and tools are vital, with the potential to save lives if applied correctly and timely.