Blood Gas Analysis

Abstract

Blood gas analysis is a diagnostic tool commonly used to evaluate the partial pressure of blood gases and acid-base content. Based on the source of the blood sample, there are three types of blood gas analysis: arterial blood gas analysis, venous blood gas analysis, and capillary blood gas analysis. The results of blood gas analysis of arterial and capillary blood samples have correlations. The values ​​of pH, HCO^3, and pCO₂ are interrelated, they can be substituted for one another. The clinical process causes the blood to become acidic or alkali. Acidosis is characterized by a decrease in HCO3- or an increase in pCO2, leading to an increase in H ions and a decrease in pH, and alkalotic condition characterized by an increase in HCO3- or a decrease in pCO2, leading to a decrease in H+ ions and an increase in pH.