Predicting the progression of acute kidney injury (AKI) and need for renal replacement therapy (RRT) in early stages of AKI would be a useful bedside tool for clinicians, especially in resource-limited countries to optimize resource utilisation. We tested the predictive value of urine neutrophil gelatinase-associated lipocalin (NGAL) measured in the AKI stages 1 and 2, to predict progression of AKI and need for RRT.