Which of the following statements is true of delayed hemolytic reactions?
A)Are associated with complement-mediated intravascular hemolysis.
B)Are associated with extravascular hemolysis.
C)Are the most common reactions to occur during blood transfusion.
D)Occur immediately after exposure to a transfused component.

Question

Quizplus · Accepted Answer

Delayed hemolytic reactions are associated with extravascular hemolysis, where red blood cells are destroyed outside of the bloodstream by macrophages in the spleen and liver. This occurs over days to weeks after a transfusion and is typically caused by a recipient's immune response to a foreign antigen on the transfused red blood cells. The reaction is not immediate, unlike acute hemolytic reactions. Delayed hemolytic reactions are less common than acute hemolytic reactions.

Which of the Following Statements Is True of Delayed Hemolytic