What does the student learn about warm autoimmune hemolytic anemia?
A)Warm autoimmune hemolytic anemia occurs primarily in children.
B)It is self-limiting and rarely produces hemolysis.
C)Erythrocytes are bound to macrophages and sequestered in the spleen.
D)Immunoglobulin M coats erythrocytes and binds them to receptors on monocytes.

Question

Quizplus · Accepted Answer

The immunoglobulin G-coated red blood cells bind to the Fc receptors on monocytes and splenic macrophages and are removed by phagocytosis. This disease occurs mainly in people older than 40 years of age. It is one of the hemolytic anemias and destruction of red blood cells occurs by extravascular processes. The erythrocytes are bound to macrophages, not monocytes.

What Does the Student Learn About Warm Autoimmune Hemolytic Anemia