| Acid Hemolysis Test | 5512X |
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| The red cell CD55 and CD59 Expression assay is a more accurate test for diagnosing paroxysmal nocturnal hemoglobinuria (Test Code 19835X). | ||
| CPT Code(s): 85475 | Clinical Significance: The (Acid, bH 6.2) Hemolysis Test is useful in screening for paroxysmal nocturnal hemoglobinuria (PNH). Clinical signs of PNH include erythrocytic destruction with the appearance of dark urine in the morning. PNH is an acquired disorder that is characterized by hemolytic anemia, large vessel thrombosis, or a deficiency of hematopoiesis. |
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| Specimen Container: EDTA (lavender-top)-whole blood |
| Preferred Specimen: 5 mL whole blood (1 mL minimum) |
| Transport Temperaturer: Refrigerated |
| Methodology: Complement Lysis |
| Reference Range: Negative |
| Reject Criteria: Received frozen; Hemolysis |
