Multiple choice

The concentrations of circulating antibodies become higher in

  1. Cogan syndrome

  2. Cold agglutinin disease

  3. Giant-cell arteritis

  4. Degos disease

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cold agglutinin disease is an autoimmune disease characterized by the presence of high concentrations of circulating antibodies, usually IgM, directed against red blood cells. It is a form of autoimmune hemolytic anemia, specifically one in which antibodies only bind red blood cells at low body temperatures, typically 28-31°C.

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