Introduction about first aid?

First aid training is of particular importance in case of catastrophe, when medical and hospital services are limited or delayed. Catastrophe may take the form of a hurricane, a flood, an earth-quake, a tornado, an explosion, or a fire. It may also take the form of a single accidental death or a life-threatening illness. Knowing what to do in an emergency helps to avoid the panic and disorganized behavior that are characteristic of unprepared persons at such times. Knowledge of first aid is a civic responsibility. It not only helps to save lives and prevent complications from injuries but also helps in setting up an orderly method of handling emergency problems ac-cording to their priority for treatment, so that the greatest possible good may be accomplished for the greatest number of people.