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Ham Test

Normal
1. Negative
Positive
1. Paroxysmal Nocturnal Hemoglobinuria
False Positive
1. Hereditary or acquired spherocytosis
2. Transfusion with old Red Blood Cells
3. Myeloproliferative syndromes
4. Leukemia
5. Hereditary dyserythropoietic Anemia type II (HEMPAS)

Acidified serum lysis test, RBC (C0430257)
Concepts	Laboratory Procedure (T059)
English	Acid haemolysin assay, Acid hemolysin assay, Acidified serum test, Ham test, Ham's test, Hams test
Spanish	ensayo de hemolisina Ã¡cida, ensayo de hemolisina acida, prueba de Ham
Credits	Derived from the NIH UMLS (Unified Medical Language System)

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This page was written by Scott Moses, MD. This page was last revised before 5/10/08, prior to consistent tracking of revision date. This page was last published on 5/10/2008. Please send comments and questions to the editor. Contact information may be found on the page About the Family Practice Notebook. These pages are best viewed with Microsoft Internet Explorer 6.0.

Hematology and Oncology Book

Acute Phase Reactant

Anemia

Bone Marrow Disorders

Cancer

Coagulopathy

Complete Blood Count

Hemolytic Disorders

Miscellaneous

Platelet Disorders

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Ham Test

Acidified serum lysis test, RBC (C0430257)

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