Highlights & Basics
- Hemolytic anemia is characterized by the premature destruction of red blood cells.
- Anemia, reticulocytosis, low haptoglobin, high lactate dehydrogenase, and high indirect bilirubin suggest hemolysis.
- Direct antiglobulin test (Coombs) is important for differentiating immune from nonimmune etiologies. Peripheral smear review is important in identifying underlying cause.
- Corticosteroids are often first-line therapy in immune-mediated cases. Discontinuation of offending agents (e.g., suspected drugs) and supportive care are the mainstay of treatment for many subtypes.
- Early vaccination against encapsulated organisms is important in cases that may be treated with splenectomy.
Quick Reference
History & Exam
Key Factors
Other Factors
Diagnostics Tests
Treatment Options
Definition
Epidemiology
Etiology
Pathophysiology
Images
Peripheral blood smear with spherocytes, reticulocytes, and a nucleated red blood cell
Peripheral blood smear with red blood cell fragments, or schistocytes (arrow)
Digitally-colorized scanning electron micrograph showing normal red blood cells (RBCs) and a sickle cell RBC (left) in a blood specimen of patient with sickle cell anemia
A photomicrograph of a blood smear showing erythrocytes containing developing Plasmodium vivax parasites
Photomicrograph revealing the presence of what were determined to be numbers of intraerythrocytic Babesia sp. ring-form parasites
Citations
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Hill QA, Stamps R, Massey E, et al. The diagnosis and management of primary autoimmune haemolytic anaemia. Br J Haematol. 2017 Feb;176(3):395-411.[Abstract][Full Text]
Hill QA, Stamps R, Massey E, et al. Guidelines on the management of drug-induced immune and secondary autoimmune, haemolytic anaemia. Br J Haematol. 2017 Apr;177(2):208-20.[Abstract][Full Text]
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