LCN2 and acute kidney injury: In several studies of humans, increased uNGAL at the time of AKI diagnosis predicted poor short‐ and long‐term outcomes, including end‐stage renal disease and death.17, 50 The prognostic relevance of serum and urine NGAL is recognized also in nonrenal conditions, such as sepsis and heart failure.50, 51 The prognostic role of NGAL is controversial in the veterinary literature.