I do not disagree with First Aid.
CPR, however, is another story. The odds of survival of a cardiac arrest in the absence of quick access to a defibrillator is close to nil.
Even with the presence of a defibrillator, the survival rate of a cardiac arrest is not high. In a hospital with access to a code team, it is an unusual thing for a cardiac arrest to result in a patient who eventually WALKS out of the hospital.
Admittedly, the average hospitalized patient is much sicker than someone otherwise healthy suffering from a cardiac arrest due to a lightning strike.
Respiratory arrest OTOH is likely survivable.
Conway Yee