How can bystanders assist a first responder at the scene of an emergency?

Bystanders can play a crucial role at the scene of an emergency by summoning help and assisting in administering first aid. In situations where every second counts, having bystanders support first responders can be invaluable. Their actions can help ensure that the individual in need receives timely care and that emergency services are on their way.

Summoning help means either calling 911 or directing someone else to do so, which is critical for ensuring that professional assistance arrives quickly. Additionally, bystanders can assist first responders by helping with basic first aid measures, such as applying pressure to a wound or keeping the airway clear, which can be life-saving until more advanced medical help arrives.

The other answer choices, while they do reflect certain aspects of emergency response, do not fully capture the collaborative role that bystanders can play. Providing first aid training may not be practical during an emergency. Taking control of the situation can lead to confusion if the bystander lacks the necessary training. Ensuring no one crowds the victim is important for creating a safe space but does not address the active role bystanders can take in helping with care and communication.