[Influence of some infusion fluids on red blood cells deformity in vitro]

The aim of this study was in vitro investigation of the influence of following infusion liquids: 20% human albumin, 5% dextran 40,000, 10% hydroxyethylstarch, 0.9% NaCl and Ringer lactate solution on red cell blood corpuscles deformability (elongation index). Examinations were compared with erythrocytes suspended in autologous plasma. Infusion liquids were added to red blood cells suspension and incubated during 30 minutes at 37 degrees C. The erythrocyte deformability was measured by shear stress defractometer Rheodyn SSD. We observed the slight increase of erythrocyte deformability under the influence of hydroxyethylstarch and lactate buffered Ringer solution.