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Rh blocking test


Definition: a test for nonagglutinating Rh antibodies: an Rh agglutination test is first carried out; if the test result for Rh agglutinins is negative, then 1 drop of anti-Rho agglutinating serum of moderate titer is mixed with the patient's serum containing Rh-positive test cells; if after incubating for from 1–2 hours at 37°C no agglutination occurs, Rho-blocking antibodies are assumed to be present in the patient's serum.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.