A Acute kidney injury (AKI) is an abrupt decrease of renal function which marked by increase of serum creatinine ≥0.3 mg/dL or ≥1.5 times of previous level or decrease urine output 6 hours. Sepsis is the most common cause of AKI with incidence rate is about 20–50% and mortality nearly 70%. Urine neutrophil gelatinaseassociated lipocalin (NGAL) level in AKI patients can increase quickly an…