Multiple choice

Paroxysmal nocturnal hemoglobinuria (PNH) is a rare disorder that causes red blood cells to break down sooner than they should. It generally results from deficiency in

  1. myeloperoxidase

  2. decay accelerating factor (DAF)

  3. classical pathway C components

  4. C1 inhibitor

  5. C8

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

The spontaneous creation of alternative pathway C3 convertase on the red cell is normally eliminated through membrane bound DAF.