IgA deficiency testing
The occurrence rate of immunoglobulin-A (IgA) deficiency among Finnish blood donors is 1:500. Some of the people with IgA deficiency form antibodies against IgA. This may cause an elevated risk of anaphylactic reaction during transfusion.
The Blood
Service tests the IgA concentration in the serum and, if necessary, identifies
the anti-IgA antibodies.
