ALB and Hypokalemia: Compared to the non-hypokalemia group, the red blood cell count, hemoglobin level, total serum protein, serum albumin, and calcium ion concentration were lower (p < 0.05), while direct bilirubin, PT, and APTT were higher (p < 0.05) and the operation time was longer (p < 0.001) in the hypokalemia group.