Phosphorus control is crucial in managing canine and feline chronic kidney disease (CKD), particularly in cats. Because the disease is progressive and incurable, monitoring a cat with CKD is vitally important. With early detection and management, you can significantly extend your patient's lifespan and maintain a good quality of life. In this VetFolio Voice podcast episode, we delve into the monitoring of CKD in cats—including assessing Blood Urea Nitrogen (BUN), creatinine, Symmetric Dimethylarginine (SDMA), proteinuria and blood pressure—and how phosphorus can get lost in the shuffle, especially if it is within the normal reference range. Learn why it is important to continue to actively monitor and manage phosphorus since it is a disease accelerant even before the concentration leaves the normal reference range. We discuss the pathophysiology behind hyperphosphatemia, how to effectively monitor phosphorous levels in order to be able to intervene early, options for managing hyperphosphatemia and updates to the IRIS guidelines.