Calculate DO2 when QT = 5 L/min and CaO2 = 18 mL/dL.

Study for the Respiratory Therapy Test. Use flashcards and multiple choice questions, featuring hints and explanations. Prepare for your exam successfully!

Multiple Choice

Calculate DO2 when QT = 5 L/min and CaO2 = 18 mL/dL.

DO2 is the amount of oxygen delivered to the tissues each minute, calculated as cardiac output times the arterial oxygen content. Here, QT is 5 L/min, which converts to 50 dL/min (since 1 L = 10 dL). Multiply by CaO2 of 18 mL O2/dL: 50 × 18 = 900 mL O2/min. So the oxygen delivery is 900 mL per minute.

DO2 is the amount of oxygen delivered to the tissues each minute, calculated as cardiac output times the arterial oxygen content. Here, QT is 5 L/min, which converts to 50 dL/min (since 1 L = 10 dL). Multiply by CaO2 of 18 mL O2/dL: 50 × 18 = 900 mL O2/min. So the oxygen delivery is 900 mL per minute.

More practice questions