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PNH (Paroxysmal Nocturnal Hemoglobinuria)

Blood 3mL lavender top tube (EDTA) or 6mL dark green top tube (Sodium Heparin).

Blood samples must be maintained and transported at room temperature (15-25 degrees C) within 8 hours of collection.  If greater than 8 hours, then maintain and transport at 2-8 degrees C.  All specimens must be received in the laboratory within 48 hours after collection.  Patient's transfusion history must be indicated.