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Determination of the PCO2-Dependent Component of the H+ Concentration in Venous and Arterial Blood Plasma

  • Masaji Mochizuki
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 411)

Abstract

In normal venous blood plasma, the regression line of [H+] plotted against the PCO2 was linear against the square root of PCO2. Sequential measurements in venous and arterial blood of PCO2 and [H+] showed that the venous-arterial (V-A) difference in [H+] was linearly related to the V-A difference in the square root of PCO2, the regression line having the same slope as that of the venous [H+] plotted against the square root of PCO2. These findings suggested that the venous [H+] on the regression line represents the PCO2dependent component, of [H+], [H+]*. The PCO2-independent component, Δ[H+], can then be given by subtracting [H+]* from the measured [H+]. The Δ[H+] in venous blood agreed well with that in arterial blood with a correlation coefficient of 0.99, supporting the validity of the value of [H+]*.

Keywords

Regression Line Venous Blood Elderly Group Venous Plasma Interrupted Line 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • Masaji Mochizuki
    • 1
  1. 1.Geriatric Respiratory Research CenterNishimaruyama HospitalChuo-KuJapan

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