Serum procalcitonin levels predict acute kidney injury in critically ill patients.

Aim: To determine whether admission procalcitonin (PCT) was associated with the subsequent development of acute kidney injury (AKI) in a general population of critically ill patients.

Methods: The study was a retrospective observational study conducted in a multidisciplinary intensive care unit (ICU) over a period of 1 year. Adult patients who had a PCT performed on admission and who did not have chronic kidney disease (CKD) or AKI on admission, were evaluated for the development of AKI within the first week of ICU admission, according to the Kidney Disease Improving Global Outcomes (KDIGO) criteria.