[Effect of various plasma substitutes on blood groups].

In order to test the influence of the plasma substitutes Macrodex 6%, Plasmasteril and Expafusin on subsequent blood-typing and serologic tolerance tests, blood specimens of known donors of blood group 0 Rh negative were incubated with the respective plasma substitutes in various dilutions and serologic tests performed. In the AB0 and Rh system, none of the plasma substitutes tested caused falsely positive agglutinations. Reading of cross-match in the albumin test was not impeded in any of the substitutes. The higher molecular dextran Macrodex 6% and the high molecular hydroxyethylene starch Plasmateril appeared to have positive blood-group serologic reactions. With the low molecular hydroxyethylene starch Expafusin no irritations occurred in all tests of cross-matching.