What factors complicate CPR delivery in a real-world scenario?

The correct answer identifies critical factors that significantly impact the ability to effectively perform CPR in a real-world scenario. Scene safety is paramount; if the environment is dangerous, it can hinder the rescuer's ability to proceed without putting themselves or others at risk. This includes assessing for potential hazards like traffic, fire, or other threats that could complicate the situation.

Bystander support is also essential, as having additional individuals present can help by calling for emergency services, assisting with CPR, or handling crowd control. If more people are available to help, it allows for a more efficient response and can improve the chances of a successful outcome.

Equipment availability plays a crucial role as well; access to necessary tools—such as an Automated External Defibrillator (AED)—can enhance the effectiveness of CPR and increase the likelihood of survival for the victim. Without these supports, performing CPR becomes challenging and may delay critical care.

In summary, scene safety, bystander presence, and equipment availability collectively influence the effectiveness and efficiency of CPR delivery, making them key factors to consider in real-world emergency situations.