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. Author manuscript; available in PMC: 2011 Oct 1.
Published in final edited form as: J Card Fail. 2010 Jun 16;16(10):835–842. doi: 10.1016/j.cardfail.2010.05.003

Table 4.

Exercise arterial and alveolar O2 and CO2 content, dead space and VE/VCO2

 
 Control
 HF
 p value
VE/VCO2 ratio 30 ± 4 45 ± 9 <0.01
PaCO2 (mmHg) 39 ± 4 33 ± 5 <0.01
VD/VT 0.23 ± 0.06 0.37 ± 0.08 <0.01
VD (L/min) 11.9 ± 5.7 11.5 ± 4.0 0.79
VD/VE (%) 23 ± 6 37 ± 8 <0.01
VA (L/min) 38.3 ± 12.6 19.6 ± 7.1 <0.01
PaO2 (mmHg) 92 ± 6 79 ± 14 <0.01
PAO2 (mmHg) 102 ± 5 113 ± 7 <0.01
AaDO2 (mmHg) 10 ± 4 33 ± 14 <0.01
SaO2 (%) 96 ± 1 96 ± 3 0.71

See Table 2 for abbreviations. Data are presented as mean ± standard deviation.