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Table 3 The mean values for all patients of the initial, final, average and after 1 min of cardiopulmonary resuscitation (CPR) partial pressures of end-tidal carbon dioxide (PetCO2) for arrest due to asphyxia and for ventricular fibrillation/pulseless ventricular tachycardia (VF/VT) cardiac arrest

From: Difference in end-tidal CO2 between asphyxia cardiac arrest and ventricular fibrillation/pulseless ventricular tachycardia cardiac arrest in the prehospital setting

 

Initial PetCO2 (mmHg)

PetCO2 after 1 min of CPR (mmHg)

Average PetCO2 (mmHg)

Final PetCO2 (mmHg)

Asphyxial cardiac arrest

66.4 ± 17.3

29.1 ± 4.9

48.2 ± 10.1

27.3 ± 9.2

VT/VF cardiac arrest

16.5 ± 9.2

24.2 ± 5.1

17.3 ± 7.1

24.4 ± 10.3

P value (Student t test)

< 0.01

0.73

< 0.05

0.78

  1. 1 mmHg = 0.133 kPa.