Skip to main content

Table 2 In vitro CO measures (ppm) provided by B&K and PiCO+ on four standards

From: Normal values of exhaled carbon monoxide in healthy subjects: comparison between two methods of assessment

Standard B&K PiCO+ P
5 ppm 5.1 (0.1) 6.7 (0.4) <0.01
9.9 ppm 10. 00 (0.1) 12. 0 (0.9) <0.05
20 ppm 19. 00 (0.1) 18. 5 (0.6) 0.59
50 ppm 47. 9 (0.2) 47. 0 (1.0) 0.28
  1. Means (standard deviations) of three values are reported.