Studies on Peritoneal UF Loss: The UF Coefficient (K) as an Index of the PM Filtration Efficiency
The ultrafiltration rate progressively decreased during an IPD session of 40 L carried out with rapid exchanges of 2.5% dextrose solution. Several factors vary during the session causing a decrease in the global transmembrane pressure and consequently in ultrafiltration rate. In these conditions while K calculated as Qf/Δ Osm seems to vary, the coefficient K, calculated as Qf/“real” TMP appears to be constant. The blood pressure plasma protein concentration, hematocrit and blood viscosity may influence ultrafiltration rate in peritoneal dialysis.
KeywordsPermeability Hydration Filtration Albumin Dehydration
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