I've learned that in every BCLS, ACLS and PALS class I've taken.
And directly from the AHA themselves;
http://circ.ahajournals.org/cgi/content/full/102/suppl_1/I-22
Interesting. I'm surprised. Why is this? Aren't we worried about injuries due to needless CPR?
For the record, this is not true of Red Cross. I realize that red cross means close-to-nothing in the health provider field, but since we're talking about layperson CPR, it bears mentioning. I cannot find a citation, but I had to take a Red Cross CPR course roughly a year ago, and their official curriculum still taught it. (Then I subsequently took AHA for healthcare...) Also, I suspect that more laypersons are trained by the ARC than the AHA, although this is PURELY speculation.
As for the original topic... can we all agree that there are probably two sides to this story, and leave it at that? As far as I'm concerned, anything else is purely speculative; as much as I think that, given the reported conduct of the nurse, I think she should be charged with obstruction of EMS personnel, this report may not be accurate. Since I wasn't there, I simply don't know. The only people who could attest to this are the civvie witnesses, and we don't have a single bystander statement to work from.