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Arterial oxygen content of the blood:
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Venous oxygen content of the blood:
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Arterial-mixed venous oxygen content difference:
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Oxygen Delivery: DO2 = CO × CaO2 × 10
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Oxygen Consumption: VO2 = CO × (CaO2 − CvO2) × 10
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Oxygen Extraction Ratio: O2ER = VO2/DO2 = [(CaO2 − CvO2)/CaO2]
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Pulmonary Vascular Resistance: PVR = (PAP − PAOP)/CO × 79.9 dynes*sec/cm5
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Systemic Vascular Resistance: SVR = (MAP – RAP)/CO × 79.9 dynes*sec/cm5
If you don't multiply by 79.9, then use Woods units OR mmHg/L/min
PAP – Pulmonary artery pressure
PAOP – Pulmonary artery occlusion pressure
MAP – Mean arterial pressure
RAP – Right atrial pressure
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Normal Pediatric Hemodynamic Variables - See Table 27-1
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