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Determinants of blood pH in health and disease.

Authors
  • Kellum, J A
Type
Published Article
Journal
Critical care (London, England)
Publication Date
Jan 01, 2000
Volume
4
Issue
1
Pages
6–14
Identifiers
PMID: 11094491
Source
Medline
License
Unknown

Abstract

An advanced understanding of acid-base physiology is as central to the practice of critical care medicine, as are an understanding of cardiac and pulmonary physiology. Intensivists spend much of their time managing problems related to fluids, electrolytes, and blood pH. Recent advances in the understanding of acid-base physiology have occurred as the result of the application of basic physical-chemical principles of aqueous solutions to blood plasma. This analysis has revealed three independent variables that regulate pH in blood plasma. These variables are carbon dioxide, relative electrolyte concentrations, and total weak acid concentrations. All changes in blood pH, in health and in disease, occur through changes in these three variables. Clinical implications for these findings are also discussed.

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