A 60-year-old patient post coronary artery bypass grafting returned from the theater intubated and ventilated. He had two chest drains (routine postoperative) and on arrival to the intensive care unit, he was on 3 μg/min of noradrenaline infusion. Over the next 2 h, his drain output has increased from 50 mL/h to 200 mL/h and his noradrenaline requirement increased up to 20 μg/min to achieve a systolic blood pressure of 110 mm Hg. His current blood lactate is 7 mmol/L. There is no drain output this hour, the current BP is 90/78 mm Hg, and there is a visible swing in the arterial line trace. His central venous pressure is 22 mm Hg. His blood result showed a drop in hemoglobin from 9.8 to 6.5 g/dL.