Subjects will be randomized to receive or not receive cell saver during surgery. The following data will be collected during the clinic visit: age, gender, smoking status, height, weight, co-morbidities, the use of medications that may increase bleeding (Plavix, Coumadin, Warfarin), or increase blood production (Ferrous sulfate, erythropoietin). The following pre-operative data will be collected: hemoglobin, hematocrit, body temperature and whether or not patient pre-donated blood, the predonated blood volume and date of donation.