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.
KeywordsPeritoneal Dialysis Mean Arterial Pressure Blood Viscosity Plasma Osmolality Filtration Efficiency
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