Elevated levels of urinary NGAL are useful for predicting AKI, differentiating intrinsic AKI from pre-renal AKI, and predicting renal non-recovery, in-hospital mortality, and long-term CKD progression [57]. AUC for AKI prediction: 0.87 in all hospitalized patients [58]. The gene discussed is LCN2; the disease is acute kidney injury.