What is the basic first action for a casualty with major burns?

The basic first action for a casualty with major burns is to stop the burning process before providing further care. This step is crucial because it prevents further injury and minimizes the extent of the damage to the affected areas. Stopping the burning can be done by removing the source of the burn, such as flames, hot liquids, or chemicals. If the burn is caused by flames, this might involve smothering the flames with a blanket, rolling the person on the ground, or using water.

Taking this immediate action is vital to mitigate the severity of the burns and allows for the safe application of further treatment such as cool, sterile dressings or medical intervention. Prioritizing stopping the burning prevents additional harm and helps stabilize the casualty for subsequent care.