What must be evaluated to ensure the safety of rescue attempts?

Evaluating life sustainability in current conditions is essential to ensure the safety of rescue attempts because it focuses on the immediate circumstances surrounding individuals who require rescue. This assessment involves understanding factors such as the level of danger present, the environmental conditions, and the vital signs of the trapped individuals. Ensuring that the person's life can be sustained amid ongoing hazards is critical to informing rescue strategies and the urgency of the operation.

By prioritizing life sustainability, rescuers can make informed decisions about the safest ways to approach the situation while minimizing risk to both the victims and the rescuers. This assessment also helps in determining whether immediate action is necessary or if it would be safer to wait for conditions to improve or for additional resources to arrive.