CPR meant to provide layperson as well as healthcare staff with the necessary skills to be the first responder in any case of collapsed patient.
*making sure you and patient not in danger zone
therefore DR should be added as suffix to ABC
D: danger
R: response
if everything alright, proceed with conventional
Airway : head tilt chin lift / jaw trust / oropharyngeal airway / making sure no foreign body
Breathing : rise and fall of the chest wall
Circulation : feeling / palpating the major vessel pulse ie carotid pulse
Defibrillation: Automated External Defibrillator
previously chest compression : breathing ratio was 15:2
latest changes in CPR guidelines is 100 chest compressions per minute. When doing rescue breaths, you should breathe into the victim for about one second, until the chest clearly rises. The current ratio is 30 compressions to 2 breaths.
Reference:
Personal Training
American Red Cross, CPR/AED tor the Professional Rescuer, 2007
p/s: (primary vs secondary survey)
1) identify whether this is shockable wave (VT/VF) or not (PEA)
2) remember your 6Hs & 5Ts for PEA.
3) after 1st shock continue with CPR, after 2nd shock give 1mg of iv adrenaline and continue with CPR. If still not reverted and shockable wave, shock and then give iv amiodarone 300mg bolus or lignocaine 1%. If torsades de pointes, give iv MgSO4.
4) maximum iv atropine can be given is 3mg.