Normalized protein catabolic rate (nPCR) serves as an estimate of a dialysis patient’s dietary protein intake. It is a calculated value reflecting the rate at which the body breaks down protein, adjusted for body weight. A higher nPCR generally indicates a higher protein intake, while a lower value might suggest insufficient dietary protein. For example, an nPCR of 1.2 g/kg/day suggests that the patient is consuming approximately 1.2 grams of protein per kilogram of their body weight each day.
Adequate protein intake is crucial for individuals undergoing kidney dialysis to maintain muscle mass, support immune function, and improve overall nutritional status. Malnutrition is a significant concern in dialysis patients, and monitoring nPCR helps healthcare professionals tailor dietary recommendations to meet individual needs. Historically, measuring nitrogen balance was cumbersome; nPCR offers a practical and less invasive method to assess protein intake indirectly.
