高齢患者動脈血漿内酸塩基平衡の解析

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概要

• 論文の詳細を見る

• We have previously found that in the normal blood, where a metabolic component of pH, pHo, was ignored, a respiratory component, pH*, was given by a linear logarithmic function of Pco2,; pHo was then obtained by subtracting pH* from the measured value for pH. Analysis of the acid-base imbalance was greatly facilitated by this division of pH into its metabolic and respiratory components. In arterial blood of elderly patients, the regression functions of pH and pH* against pHo were linear. Pco2 was also linearly related to pHo, whereas pH* showed a reciprocal relation to pHo. It was then establishied that about 26% of pHo was compensated for by the change in pH*, so the change in pH was limited to 74% of the change in pHo. Since pH is the sum of pH* and pHo, the deviations of the individual points of pH and pH* from the respective regression lines became equal. Designating the pH and pH* values on the respective regression lines by pH and pH*, pH − pH became equal to pH* − pH*, because pH − pH* = pH − pH*.

• 2008-08-15

著者

• 望月 政司

  Emeritus Professor of Yamagata University

• Masaji Mochizuki

  Emeritus Professor of Yamagata University, Yamagata, Japan, Geriatric Respiratory Research Center, Nishimaruyama Hospital, Chuo-Ku, Sapporo, Japan

関連論文

• 定常空気呼吸時の血液中CO_2含量とCO_2分圧の関係
• 定常空気呼吸時の血漿内pHの分析
• 定常空気呼吸時の血漿炭酸イオン濃度とCO_2分圧の関係
• 高齢患者動脈血漿内酸塩基平衡の解析

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