2023年7月5日 · 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. For more information on ABGs, see our guides to performing an ABG and interpreting an ABG.

2025年1月17日 · In the intensive care unit, emergency department, and respiratory floors, many clinicians use venous blood gases (VBGs) instead of ABGs to estimate indices of ventilation and acid-base disturbance (ie, systemic carbon dioxide [CO 2] and pH).

VBG cannot be used to assess oxygenation, but it's generally adequate to assess pH and ventilation (pCO2 and pH). The difference between ABG and VBG values is proportional to the difference in the oxygen saturation between arterial and venous blood:

Venous blood gases (VBG) are widely used in the emergency setting in preference to arterial blood gases (ABG) as a result of research published since 2001; The weight of data suggests that venous pH has sufficient agreement with arterial pH for it to be an acceptable alternative in clinical practice for most patients

Venous blood gas (VBG): Done to study the gases, such as oxygen and carbon dioxide, that are dissolved in the blood. Arterial blood gases (ABG): Measures how effectively the lungs move oxygen into the blood and eliminate carbon dioxide from the blood, as well as how much hemoglobin can transmit oxygen throughout the body.

Venous blood gas (VBG) interpretation . Arterial blood gases (ABGs) are commonly used for estimating the acid-base status, oxygenation and carbon dioxide concentration of unwell patients. However, arterial blood can be difficult to obtain due to weak pulses or patient movement.

2019年3月4日 · A peripheral venous blood gas (VBG) can be obtained as the nurse obtains IV access upon patient arrival, requiring no additional sticks or risk of arterial injury. This review will break down blood gas results into individual components to compare venous versus arterial results and evaluate whether these are clinically important differences.

2022年10月17日 · pCO2: The partial pressure of carbon dioxide is a measured (ie, real) value on the VBG and can help to determine the respiratory status of a patient, or to adjust the vent in a patient who is intubated. 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.

There was statistically significant difference (p < 0.001) in mean values of SO2 in ABG and VBG but not in pH, PCO2 and HCO3. Figure 2 showed that strong correlation PCO2 between ABG and VBG...

Our study has shown either strong or very strong correlations and agreements for most ABG and VBG parameters except pO2 and SO2. We can also predict an ABG mathematically using regression formulas devised from a VBG sample.