Accuracy of capnography in nonintubated surgical patients.

@article{Liu1992AccuracyOC,
  title={Accuracy of capnography in nonintubated surgical patients.},
  author={Song Yu Liu and Tae Seung Lee and Fred Bongard},
  journal={Chest},
  year={1992},
  volume={102 5},
  pages={
          1512-5
        }
}
Previous studies have reported mixed results when correlating etCO2 and PaCO2 in mechanically ventilated patients with underlying respiratory disease. However, the utility and accuracy of capnography in nonintubated patients, without chronic pulmonary disease, has received little attention. We studied 25 nonintubated surgical patients to (1) examine the correlation between PaCO2 and etCO2 and (2) describe the relationship between dead space (VD/VT), venous admixture and P(a-et)CO2. End tidal… CONTINUE READING

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