[External quality control for anti-D demonstration within the scope of Rh immunoprevention].

In the GDR the success and the dosage of IgG-anti-D in immune prophylaxis after birth of Rh-positive infants from Rh-negative mothers are controlled by the estimation of anti-D antibodies in maternal serum. For this purpose the papain method was introduced in centers for immune prophylaxis since 1970/71 at the time of general introduction of this immune prophylaxis in the GDR. The results if five external quality control experiments in the 16 to 18 such centers in the district of Magdeburg between 1972 and 1977 are recorded. The false positive and false negative reports are discussed and the demand for those regular external quality controls is carried ant.