First aid is the care and primary care and immediate and temporary man received as a result of sudden exposure to an emergency medical condition led to bleeding wounds or fractures or fainting .. etc. to save his life and provide specialized medical care untill the arrival of a doctor to the scene or to transfer him to the nearest hospital or medical clinic.
First aid targets
1 - Maintain a person's life .
2 - Prevent the deterioration of the situation of the patient.
3 - Help the injured recover .
 
Principles of first aid
1 - complete control of the site of the event .
2 - Not infected dead for just the demise of the phenomena of life , such as apnea or pulse.
3 - Remove the injured from the source of danger .
4 - Attention operations artificial respiration and cardiac resuscitation , bleeding and shock. And so on.
5 - Care of the situation before being transported to the hospital.
6 - Attention to comfort the injured.
7 - Attention to save and record all the information available about the incident and the actions that followed.