After searching for information, the main objective indicator of the speed of first aid is the average response time.
First aid is the meaning of emergency treatment, refers to when any accident or disease occurs, the rescuer before the arrival of medical personnel, according to the principles of medical care, the use of the scene applicable materials temporary and appropriate for the injured and sick people for the initial rescue and care, and then sent to the hospital quickly. The purpose is to preserve life, restore breathing, heartbeat, stop bleeding, and treat shock; the second is to prevent the injury from worsening - treating wounds and immobilizing bones. The third is to promote recovery. Avoid non-essential movement, handle with care, maintain the most comfortable sitting (or lying) position, kind words of comfort.