Dogs then were classified by the presence (n = 39) or absence (n = 161) of AKI for calculation of diagnostic performance.<h4>Methods</h4>Urinary NGAL was measured using the Dog NGAL ELISA Kit (Bioporto) as the existing test and the "PRIMA Veterinary-KI screening test" (PRIMA Lab) as an index test.<h4>Results</h4>At the optimized cut-off of 20 ng/mL for the POC device, a sensitivity of 97.3% (95%CI, 85.8-99.9) and a specificity of 66.3% (95%CI, 58.4-73.5) for diagnosing AKI were found. Here, LCN2 is linked to acute kidney injury.