Febrile/cold agglutinins
Alternate Names : Cold agglutinins, Weil-Felix reaction, Widal's test, Warm agglutinins
Normal Values
- Warm agglutinins: no agglutination in titers at or below 1:80
- Cold agglutinins: no agglutination in titers at or below 1:16
Note: Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
What do Abnormal Results Mean?
The presence of warm agglutinins may occur with:
The presence of cold agglutinins may occur with: - Infections, especially Mycoplasma pneumonia
- Previous viral, staphylococcal, or malaria infection
- Cancer, including lymphoma and multiple myeloma
- Systemic lupus erythematosus
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