What is the main responsibility of bystanders in a cardiac emergency?

In a cardiac emergency, the primary responsibility of bystanders is to call for professional help and assist in life-saving measures. This is crucial because the immediate response of those present can significantly affect the outcome for the person experiencing a cardiac event.

Calling for professional help ensures that trained medical personnel arrive as quickly as possible, which can mean the difference between life and death. Meanwhile, bystanders can take action by administering CPR (cardiopulmonary resuscitation) or using an AED (automated external defibrillator), if available. Taking these actions can help maintain blood circulation and oxygenation to vital organs until advanced medical help arrives. It's fundamental for bystanders to be proactive in these situations, as timely intervention greatly increases survival rates in cardiac emergencies.

The other options do not contribute effectively to resolving the situation; comforting the victim alone or performing advanced medical techniques without proper training can lead to complications. Discouraging bystanders from intervening directly contradicts the essential role they play in providing immediate assistance. Hence, empowering bystanders to act is critical in emergency scenarios.