Latest / WhiteBoard Medicine - Emergency And Critical Care
#264 ABG, VBG, and Comparison Explained: Complete Breakdown + Clinical Comparison
Arterial blood gas (ABG) or venous blood gas (VBG)—what’s the difference, and when should you actually use each? In this episode, we walk through a complete breakdown of ABG and VBG, followed by a direct clinical comparison so you can confidently decide which test to use at the bedside. We cover: What an ABG measures and how to interpret it What a VBG tells you and how it differs Key differences in pH, CO₂, lactate, and oxygenation The accuracy and limitations of VBG compared to ABG When a VBG is sufficient—and when an ABG is essential Common pitfalls in blood gas interpretation Whether…
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