ALB and acute kidney injury: Microalbuminuria is an abnormal increase in albumin excretion rate with a specific range of 30-299 mg of albumin/g of creatinine or excretion of 20-200 mg/l of albumin in the spot urine samples.1 Diabetic nephropathy leading to renal failure is the second most common cause of death in diabetic patients accounting for one-third of patients with diabetes.2,3