CPR stands for Cardio Pulmonary Resuscitation. It is the basic life support. When you are in an emergency situation. The steps for do CPR are AB-CABS.
A Is the patient’s Airway open?
B Is the patient Breathing normally?
C Chest Compression
A open the Airway
B Breathing for the patient.
S Serious bleedly, Shock, Spinal injury.
First begin with the "AB", quickly check to see the patient's Airway is open or not and to check the patient