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Perit Dial Int 5(3): 152-156 1985
© 1985 International Society for Peritoneal Dialysis
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REVIEWS AND ORIGINAL ARTICLES

A QUANTITATIVE APPROACH TO THE CAPD PRESCRIPTION

Brendan P. Teehan, Charles R. Schleifer, Miles H. Sigler and Gary S. Gilgore

From the Division of Nephrology, Lankenau Hospital-Haverford Dialysis Unit, Philadel. phia, Pennsylvania.

The CAPD prescription, expressed as daily drainage volume, can be formulated as a function of the recommended dietary protein intake and the average BUN level. This process is greatly simplified because urea nitrogen reaches a state of equilibrium on CAPD. The ratio of the actual drainage volume to this prescribed drainage volume - a dialysis index (Dl), reflects the fraction of urea nitrogen clearance achieved. Used with the average BUN level, the dialysis index provides an estimate of the protein catabolic rate (PCR), in gm/kg/day. When integrated these three factors -BUN, Dl and PCR, can be applied to optimize diet and dialysis and may provide a basis for comparing treatment results between patients and between centers.

KEY WORDS: CAPD prescription; Nitro. gen balance; CAPD dialysis index Adequacy of dialysis.






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