ALB and chronic kidney disease: Also, current clinical guidelines differ, such as KDIGO (Kidney Diseases: Improving Global Outcomes), who defines chronic renal diseases as the presence of an estimated glomerular filtration rate inferior to 60 ml/min/1.73 m2 or renal lesion that can be demonstrated from histological biopsy or by the ratio of urine albumin to creatinine (UACR) [8].