Which type of anemia is characterized by the presence of autoantibodies against red blood cell antigens, leading to hemolysis and anemia?

A Warm autoimmune hemolytic anemia ✓
B Cold agglutinin disease
C Paroxysmal nocturnal hemoglobinuria
D Hereditary spherocytosis

Explanation

Warm autoimmune hemolytic anemia is a type of anemia characterized by the presence of autoantibodies against red blood cell antigens, leading to hemolysis and anemia.

Source

Harrison's Principles of Internal Medicine
Hematology Hematology: Anemia Hematology: Anemia Hard MEDICAL Confidence: high