TY - CHAP M1 - Book, Section TI - Acute Kidney Injury A1 - Honkanen, Iiro A1 - Teixeira, J. Pedro A1 - Griffin, Benjamin R. A2 - Schmidt, Gregory A. A2 - Kress, John P. A2 - Douglas, Ivor S. Y1 - 2023 N1 - T2 - Hall, Schmidt and Wood’s Principles of Critical Care, 5th Edition AB - KEY POINTSAcute Kidney Injury (AKI) is a common medical condition that affects over 50% of ICU patients, and AKI requiring RRT has a mortality rate higher than MI, sepsis without AKI, or ARDS requiring mechanical ventilation in critically ill patients.AKI does not occur in isolation, but instead has systemic effects on distant organs including the lung, heart, liver, brain, and immune system.Sepsis-associated AKI is the most common cause of AKI in the ICU. Other causes include cardiorenal syndrome, cardiac surgery–associated AKI, hepatorenal syndrome, acute liver failure, intra-abdominal hypertension, and contrast-associated AKI.Once AKI has occurred the management is supportive, including with RRT. Identifying patients at risk for developing AKI is therefore paramount for early implementation of preventive or therapeutic measures.Novel biomarkers and functional tests are useful for diagnosing and prognosticating AKI. The former includes TIMP-2 and IGFBP7 and the latter includes the furosemide stress test (FST). SN - PB - McGraw Hill CY - New York, NY Y2 - 2024/09/11 UR - accessmedicine.mhmedical.com/content.aspx?aid=1201808800 ER -