What is the correct answer?
Which is not true of cardiopulmonary resuscitation (CPR)?
A) Closed chest massage is as effective as open chest massage.
B) The success rate for out-of-hospital resuscitation may be as high as 30% to 60%.
C) The most common cause of sudden death is ischemic heart disease.
D) Standard chest massage generally provides less than 15% of normal coronary and cerebral blood flow.