Breathing o Mouth to mouth or mouth to nose o Mouth to oropharyngeal tube Mouth to shield Mouth to mask(compressing the cricoid cartilage in order to decrease gastric distention and prevent gastric refle) Bag-mask ventilation challenged endotracheal intubation- resuscitation’s“ gold standard
Breathing • Mouth to mouth or mouth to nose • Mouth to oropharyngeal tube • Mouth to shield • Mouth to mask(compressing the cricoid cartilage in order to decrease gastric distention and prevent gastric reflu) • Bag-mask ventilation challenged endotracheal intubation – resuscitation’s “gold standard
Circulation external chest compression >High-irequency(100 compressions per min) aortic pressure myocardial perfusion pressurer cardiac outputs T cise survivalrate reduce interrupted compression( compression ventilation ratio simplified to 15: 2 )Compression-only CPR: unwilling or unable to perform mouth to mouth or cardiogenic cardiac arrest
Circulation —external chest compression ➢High-frequency（100 compressions per min） aortic pressure ↑myocardial perfusion pressure↑ cardiac outputs ↑ rise survival rate ➢Reduce interrupted compression ( compression – ventilation ratio simplified to 15:2) ➢Compression-only CPR: unwilling or unable to perform mouth to mouth or cardiogenic cardiac arrest
Circulation Compression-only CPR o Research suggests: O Survival rate with compression-only CPR hirst 6-12 minutes is 40. 800 e Survival rate with chest compression add artificial ventilation is 34. 1%o because artificial ventilation may be result in respiratory alkalosis
Circulation —Compression-only CPR • Research suggests: ① Survival rate with compression-only CPR in first 6~12 minutes is 40.8% ② Survival rate with chest compression add artificial ventilation is 34.1% , because artificial ventilation may be result in respiratory alkalosis