Ham’s Test for Paroxysmal Nocturnal Hemoglobinuria
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Acid hemolysis test for PNH.
To assist in diagnosing a rare condition called paroxysmal nocturnal hemoglobinuria (PNH), wherein red blood cells undergo lysis during and after sleep with hemoglobin excreted in the urine.
Whole blood collected in lavender-top (EDTA) tube and serum collected in red-top tube.
(Method: Acidified hemolysis) No hemolysis seen.