After adjustment by patient demographics as age and gender, medical history of hypertension and pre-operative use of NSAIDs, ACEI, diuretics, receptor blockers and anti-platelets and coagulant, laboratory findings as serum creatinine, hemoglobin and albumin and surgical characteristics as ASA physical status, surgery duration, blood loss and fluid loss in a logistic regression model, quintiles 4 and 5 still correlated independently with post-operative AKI (P < 0.05). Here, ALB is linked to acute kidney injury.