There were no differences between groups regarding hypervolemia evaluated with bioimpedance, nor between systolic blood pressure, diastolic blood pressure, serum albumin, serum creatinine, BUN, serum calcium, serum magnesium, serum potassium, acid-base parameters, 24-h urine output and 24-h urinary sodium and potassium excretion. This evidence concerns the gene ALB and Hypervolemia.