• E M Rottenberg, R Dzwonczyk, T E Reilley, and M Malone.
• Department of Anesthesiology, Ohio State University Hospitals, Columbus.
• Ann Emerg Med. 1994 May 1; 23 (5): 1027-31.

Study ObjectiveTo evaluate the efficacy of three methods by which rescuers can breathe supplemental oxygen to increase their delivered oxygen concentration (FDO2) during single-rescuer, bystander-initiated CPR.DesignControlled, randomized, crossover study.SettingSimulation in laboratory setting using a CPR manikin.SubjectsThirteen-volunteer convenience sample group.InterventionsVolunteers trained only in basic life support performed ventilation only and full CPR on a CPR manikin using room air and each of three supplemental oxygen delivery methods: nasal cannula, oxygen supply tube, and demand valve. The volunteers received minimal instruction on how to use the supplemental oxygen delivery methods.Main Outcome MeasuresPeak FDO2 and peak carbon dioxide concentration; American Heart Association-defined ventilation and CPR compression performance indices. The data were analyzed using Duncan's method of analysis of variance.ResultsThe mean peak FDO2 during ventilation-only/full CPR for the baseline (room air ventilation) and each supplemental oxygen delivery method (at specified flow rate) was: baseline (room air), -17.96% +/- 0.56%/16.77% +/- 0.56%; nasal cannula (at 10 L/min), -31.77% +/- 3.06%/27.01% +/- 3.68%; oxygen supply tubing (at 15 L/min), -36.82% +/- 9.93%/30.41% +/- 4.88%; and demand valve, -78.17% +/- 9.10%/68.22% +/- 7.10%. CPR performance was not hampered by the use of the supplemental oxygen methods.ConclusionThe use of supplemental oxygen increases the rescuer's FDO2 during ventilation-only and full CPR without interfering with CPR performance.

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