ALB and acute kidney injury: Lee et al. [50] recently conducted a trial assessing effect of exogenous albumin on the incidence of postoperative AKI in patients undergoing off-pump CABG with a preoperative albumin level <4.0 g/dL and demonstrated that 20% exogenous albumin administration immediately before the operation increased urine output during surgery and decreased the risk of postoperative AKI [50].