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Ham test

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The Ham test is a test used in the diagnosis of paroxysmal nocturnal hemoglobinuria (PNH). The test involves placing red blood cells in mild acid; a positive result (increased RBC fragility) indicates PNH or Congenital dyserythropoietic anemia.[1][2] This is now an obsolete test for diagnosing PNH due to its low sensitivity and specificity.[3]

References

  1. ^ Ham, Thomas H. (1937). "Chronic Hemolytic Anemia with Paroxysmal Nocturnal Hemoglobinuria". New England Journal of Medicine. 217 (23): 915–7. doi:10.1056/NEJM193712022172307.
  2. ^ MedlinePlus Encyclopedia: Ham test
  3. ^ "Paroxysmal Nocturnal Hemoglobinuria - PNH". ARUP.


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