A Patient Presents with Complaints of Red-Tinged Urine in the Mornings

Multiple Choice

A patient presents with complaints of red-tinged urine in the mornings and symptoms of anemia.The health-care provider suspects a rare form of intravascular hemolytic anemia.Which test would be most appropriate to confirm this suspicion?

A) Ham's test for paroxysmal nocturnal hemoglobinuria (PNH)
B) Haptoglobin
C) Hemoglobin electrophoresis
D) Hemosiderin