Figure 2.

This was a 92 kg patient undergoing a primum atrial septal defect and mitral valve cleft repair. CPB time was 68 minutes. Aortic cross clamp time was 35 minutes with 1150 mL of 1:4 cardioplegia/blood solution administered (230 mL crystalloid). During CPB, 730 mL of crystalloid and drugs and 500 mL of irrigation were added to the circuit. Fluid removed included 1300 mL of ultrafiltration and 100 mL of actual blood loss. The initial hematocrit on CPB of 26% was the same at the termination of CPB. The FBC at the end of CPB was +110 mL (+1.2 mL/kg). MUF was not performed. After CPB, the remaining 1270 mL of circuit volume was processed through cell salvage equipment with 330 mL of red cells being returned to the patient in the post CPB period, but this was not included in this FBC calculation because it did not occur during CPB.