Useful For

Antibody titration is performed to determine the titer or strength of antibodies present in the patient serum directed against antigens on the test cells. In prenatal testing, sequential samples are tested for changing antibody titer may be useful in determining the severity of hemolytic disease of the newborn. Notes: 1)Titers performed are: 1:1, 1:2, 1:4, 1:8, 1:16, 1:32, 1:64, 1:128, 1:256, 1:512, 1:1024, and higher if indicated. Change in titer of at least three dilutions can be considered a significant difference.