Been made official -- the new way to begin cardiopulmonary resuscitation -- CPR -- is to skip the first two loading breaths and go right into the chest compressions. The theory is that the blood probably has enough oxy in it to start, and getting it pumping is more effective than trying to breath for the victim first.
Gonna play hell with the old ABC acronym -- Airway, Breathing, Compression -- but they say it's better. Plus there are folks who might not be willing to do mouth-to-mouth who would pump the chest.
Not so hard to remember: Guy not breathing? Get him a CAB!
So, it's thirty compressions first, then two breaths. Repeat until medical help arrives or the victim sits up and wonders why you are trying to break his ribs ...