What is First Aid? First Aid is the immediate care you give someone with an illness or injury before such as Emergency Medical Services (EMS) arrives. Giving First Aid may help someone recover more completely and quickly and it may mean the difference between life and death. You’ll learn: How to provide CPR. How to provide first aid for burn (Elect. & Chemical). How to provide first aid for broken bones. How to treat for cut and scrapes. How to provide first aid for severe bleeding injury.