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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