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. 2023 Oct 20;22:398. doi: 10.1186/s12912-023-01552-x

Table 2.

Knowledge of the study participants before and after the training

Question Pretest Post-test
Weighted mean (%) Weighted mean (%)
What is the compression-to-ventilation ratio you should use when giving CPR to any individual? 52.2 93.1
When performing two-rescuer CPR, how often should you switch roles? 52.7 88.1
When operating an AED, what are the correct steps to follow? 61.4 85.6
When looking for a pulse on a child from one year to puberty, where should you check? 69.4 92.4
What are the BLS (Basic Life Support) steps used for adults? 52.3 93.6
What are the vital characteristics of first-rate CPR? 75.1 97.3
Which step is NOT a part of the five steps in the Adult Chain of Survival? 57.4 93.6
What is the recommended BLS sequence for the 2020 ILCOR guidelines? 66.6 94.4
What are the signs of an obstruction of the airway? 68.9 92.6
How many breaths should be given during a two-rescuer CPR on an adult with an advanced airway in place? 60.1 89.1
Overall Weighted mean score (%) 61.6 91.9