There has been increased interest in acute kidney injury (AKI) over the past decade following the recognition of the association of relatively small rises in serum creatinine with worse patient outcomes. This association has resulted in newly proposed definitions in AKI based on changes in serum creatinine. In 2009, the National Confidential Enquiry into Patient Outcomes and Death Adding Insult to Injury AKI study reported that only 50% of patients who died with a diagnosis of AKI received good care. The study identified multiple deficiencies and made a number of recommendations which included improving the training of undergraduate and postgraduate trainees in the management of AKI. The aim of the evaluation was to try and identify the perception of medical trainees in Leeds Teaching Hospitals of the training they had received on AKI. A simple questionnaire was used and captured the views of 73 trainees (including 13 final-year medical students). The evaluation indicated that the majority of trainees were unaware of newly proposed definitions of AKI, and many trainees felt that the training they had received in AKI was inadequate for their needs. Following this evaluation, we have made a number of changes to the training that is delivered to both undergraduate and postgraduate trainees in Leeds on the management of AKI.