What is the most common cause of low mixed venous oxygen?

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Quizplus · Accepted Answer

Cardiac disease, specifically heart failure, is the most common cause of low mixed venous oxygen. This is because the heart is unable to pump enough blood to meet the body's oxygen demands, leading to decreased oxygen levels in the mixed venous blood returning to the heart. Liver disease, neuromuscular disease, and vascular disease are not typically associated with low mixed venous oxygen.

What Is the Most Common Cause of Low Mixed Venous