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CPR class 2a intervention
Cardiopulmonary resuscitation (CPR) class 2a interventions are acceptable, but of uncertain efficacy. The weight of evidence is in favor of their usefulness.
General
CPR class 2 intervention
References
Manual of Medical Therapeutics, 28th ed, Ewald &
McKenzie (eds), Little, Brown & Co, Boston, 1995, pg 170