BACKGROUND The term dangerous universal blood donor refers to potential agglutination of the erythrocytes of non-O recipients due to plasma of an O blood group donor, which contains high titers of anti-A and/or anti-B hemagglutinins. Thus, prior titration of anti-A and anti-B hemagglutinins is recommended to prevent transfusion reactions. OBJECTIVE The… (More)
Tetramisole produced a dose-dependent persistent contraction of cat nictitating membrane. This was not significantly altered by prior adrenalectomy or reserpinisation and tyraminisation, but was abolished by prior alpha blockade.