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Which of the Following Is TRUE Regarding Paroxysmal Nocturnal Hemoglobinuria

Question 31

Multiple Choice

Which of the following is TRUE regarding paroxysmal nocturnal hemoglobinuria (PNH) ?


A) It can be diagnosed by the deficiency of CD55 and CD59 on red blood cells.
B) Red blood cells are deficient in the complement regulatory proteins DAF (decay accelerating factor) and protectin.
C) Symptoms include lysis of red blood cells with hemoglobin appearing in the urine and a tendency to develop blood clots.
D) All of the above.

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