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To find the ideal dialysate flow rate and exchange volume for use in long-term peritoneal dialysis, 10 patients were studied over a period of 1.5 yr. Exchange volumes of 1 or 2 liters and dialysate flow rates of 1, 2, 3, 4, and 6 liters/hr were tested. Dextrose concentration remained constant at 1.5 g/100 ml. Peritoneal clearances for BUN, creatinine, and uric acid were calculated at 2, 5, 10, 15, and 20 hr during dialysis making a total of 120 clearances for each patient. All patients used a reverse osmosis automatic machine. The clearance of all three solutes tended to be higher with exchange volumes of 2 liters than they did with 1 liter; this trend was significant for BUN (P less than 0.025) and uric acid (P less than 0.025) but not for creatinine. There was a significant rise in clearance with increasing flow rates per hour for all solutes as shown in the following table. (Formula: see text), Since patients could not tolerate a flow rate of 6 liters/hr, we conclude that flow rate of 4 liters/hr with a 2-liter exchange will give maximum efficiency.
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A Rapoport, and
G A deVeber
October 1997,
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G A deVeber
December 1989,
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G A deVeber
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M Robson, and
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M Robson, and
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M Robson, and
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R Ogilvie, and
A Rapoport, and
G A deVeber
March 1974,
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M Robson, and
D G Oreopoulos, and
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A Rapoport, and
G A deVeber
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