DO2 calculation with CO 6 L/min and CaO2 18 mL/dL. What is DO2?

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DO2 calculation with CO 6 L/min and CaO2 18 mL/dL. What is DO2?

The key idea is how oxygen delivery to tissues is determined: it depends on how much blood is being pumped per minute (cardiac output) and how much oxygen each deciliter of that blood can carry (arterial oxygen content). The standard formula is DO2 = CO × CaO2 × 10, where CO is in liters per minute and CaO2 is in mL O2 per deciliter. The factor of 10 converts deciliters to liters. Plugging in the values: CO = 6 L/min and CaO2 = 18 mL/dL. Multiply 6 × 18 = 108, then multiply by 10 to convert, giving 1080 mL/min. So the oxygen delivery is 1080 mL per minute.

The key idea is how oxygen delivery to tissues is determined: it depends on how much blood is being pumped per minute (cardiac output) and how much oxygen each deciliter of that blood can carry (arterial oxygen content). The standard formula is DO2 = CO × CaO2 × 10, where CO is in liters per minute and CaO2 is in mL O2 per deciliter. The factor of 10 converts deciliters to liters.

Plugging in the values: CO = 6 L/min and CaO2 = 18 mL/dL. Multiply 6 × 18 = 108, then multiply by 10 to convert, giving 1080 mL/min. So the oxygen delivery is 1080 mL per minute.

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