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Table 4 Select physiologic variables and mortality outcomes according to PetCO 2

From: In emergently ventilated trauma patients, low end-tidal CO2and low cardiac output are associated and correlate with hemodynamic instability, hemorrhage, abnormal pupils, and death

PetCO2 No. Arrest CO Sys. BP Heart rate Mortality
0–15 38 71.1% 0.5 ± 1.2 20 ± 36 30 ± 52 100.0%
16–20 10 20.0% 4.3 ± 2.8 86 ± 55 53 ± 32 40.0%
21–25 37 2.7% 5.6 ± 1.8 131 ± 51 83 ± 24 40.5%
26–30 111 0.0% 6.2 ± 1.6 137 ± 33 95 ± 25 15.3%
31–35 111 0.0% 7.1 ± 1.9 144 ± 30 93 ± 24 10.8%
36–45 86 0.0% 7.1 ± 1.9 153 ± 37 109 ± 25 34.9%
> 45 14 0.0% 6.3 ± 2.1 176 ± 39 118 ± 21 28.6%
  n = 407      
  1. PetCO 2 end-tidal carbon dioxide, CO cardiac output, Sys. BP systolic blood pressure.