When should artificial respiration be performed on a victim?

Artificial respiration is a critical lifesaving technique used in emergency situations when a person is unable to breathe on their own. The correct scenario for performing artificial respiration is when a victim is unconscious and not breathing. In this state, the body's ability to receive oxygen is severely impaired, leading to potential brain damage or death if not addressed promptly.

When a person is unconscious, they cannot control their airway or effectively initiate breathing. Consequently, artificial respiration can provide the necessary oxygen to the lungs, which is vital for sustaining life until emergency medical assistance arrives. This technique helps maintain blood circulation and oxygenation throughout the body, preventing severe complications associated with insufficient oxygen.

In contrast, the other scenarios listed do not warrant the need for artificial respiration. For example, if a person is conscious or breathing, they likely have their airway under control and are capable of ventilating their lungs. Therefore, applying artificial respiration in those situations is unnecessary and could potentially cause harm. Similarly, while injury may indicate the need for assistance, it does not automatically mean that artificial respiration is required unless the individual is also unconscious and not breathing. Understanding these conditions is crucial for effective emergency response and ensuring the best outcome for the victim.