Delayed transfusion reactions are: (i) hemolytic, caused by anamestic responses to red cell antigens, causing hemolysis days after the transfusion; (ii) post-transfusion purpura, caused by an ...

Delayed hemolytic transfusion reaction (DHTR): A delayed hemolytic transfusion reaction occurs when the recipient develops antibodies to red blood cell antigens between 24 hours and 28 days after a ...

[7] Hypotension, tachycardia, nausea and vomiting are more likely to occur in acute reactions ... at the time of the incompatible transfusion), or delayed (if antibody is absent in the pre ...