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5 lip 2023 · This guide describes the venous blood gas (VBG) test, explains key differences from an arterial blood gas (ABG), and provides an approach to VBG result interpretation. Understanding how a VGB differs from an ABG is important.
17 paź 2022 · On the VBG, a pCO2 of about 40 (40- 50) is considered normal, though people who have COPD might have a much higher baseline pCO2. Lower than normal CO2 likely indicates that a patient’s breathing is fast and that they are blowing off CO2.
3 gru 2020 · Using this data along with established ABG RI, calculated VBG RI of pH 7.32-7.42, HCO 3 - 23 - 27 mmol/L, pCO 2 36-49 mmHg (female), pCO 2 39-52 mmHg (male) and pO 2 43-68 mmHg were formulated and compared to the VBG RI of this study.
8 gru 2021 · Base Excess – normal -2 to +2 The BE is the amount of strong acid which would need to be added or subtracted in order to return to a normal pH. A value outside of the normal range suggests a metabolic cause for the acidosis or alkalosis. A value greater +2, would indicate a metabolic alkalosis.
21 maj 2024 · Normal pH value ranges for venous blood are 7.31-7.41, while normal pH of arterial blood is 7.35-7.45. It means that venous blood is more acidic than arterial. It's due to the fact that there is more acidic carbon dioxide (CO₂) in the venous blood.
However, it is not possible to understand its type with pH. pH is also the only parameter showing compensation. Its normal values are between 7.35-7.45. It is decompensated acidosis if pH<7.35, and decompensated alkalosis if pH>7.45.
The arterial PO2 is typically 36.9 mmHg greater than the venous with significant variability (95% confidence interval from 27.2 to 46.6 mmHg). Note that much of the utility of VBG and ABG analysis is to gather serial readings to determine response to treatment.
