Parameters during cardiopulmonary bypass

Adequate activated clotting time (ACT), typically 400 to 480 seconds

pH 7.35 to 7.45

pCO₂ 35 to 45 mmHg

pO₂ 150 to 250 mmHg

Flow rate 2.2 to 2.4 L/min/m²

MAP ≥65 mmHg in absence of cerebrovascular disease or aortic atherosclerosis

MAP ≥75 mmHg in the presence of cerebrovascular disease or aortic atherosclerosis

Mixed venous oxygen saturation ≥75%

pCO₂: partial pressure of carbon dioxide; pO₂: partial pressure of oxygen; MAP: mean arterial pressure.

Graphic 93596 Version 5.0

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