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Table 3 Exhaled carbon monoxide values registered in laboratory A and B.

From: Effects of acute hypoventilation and hyperventilation on exhaled carbon monoxide measurement in healthy volunteers

Et-CO2 target

30 mmHg (hyperventilation)

40 mmHg (normoventilation)

50 mmHg (hypoventilation)

Inspiration

Normal

Deep

Normal

Deep

Normal

Lab A (0.8 ppm)

10.2(0.9)

9.6(0.8)

11.4(0.8)

10.7(0.8)

11.8(0.9)

Lab B (1.7 ppm)

10.3(0.7)

9.7(0.7)

11.6(0.8)

10.8(0.8)

11.9(0.7)

Total

10.3(0.8)

9.7(0.8)

11.5(0.8)

10.8(0.8)

11.9(0.8)

  1. Means (standard deviations) of exhaled carbon monoxide (eCO) values registered in laboratory A and B (environmental eCO level 0.8 and 1.7 ppm, respectively). Values are reported as particles per milion (ppm) .
  2. Statistical analysis: ANOVA: LabA Vs Lab B non significant; hyperventilation Vs normoventilation p < 0.01; hyperventilation Vs normoventilation p < 0.01; normal inspiration Vs deep inspiration p < 0.01.
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BMC Pulmonary Medicine

ISSN: 1471-2466

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