Chronic kidney disease is the leading cause of illness and death in older cats, and early detection combined with evidence-based management significantly extends comfortable, high-quality life.
Chronic kidney disease in cats is a welfare challenge that rewards proactive management. The gradual loss of kidney function means there is a long window during which appropriate management can significantly slow progression and maintain quality of life. The introduction of SDMA testing has moved the diagnosis window earlier — detecting disease before clinical signs appear and before the kidneys have lost the majority of their function. Early-stage management focusing on phosphorus restriction and adequate hydration can be achieved with dietary changes alone. As disease progresses, subcutaneous fluid administration at home — which many owners learn to perform — dramatically improves cats hydration status and comfort. The welfare goal is maintaining good quality of life for as long as possible while monitoring carefully for the point at which life quality declines below an acceptable threshold.