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Ency. home > Test > H > Heterophil agglutination tests

Heterophil agglutination tests   

Overview | Risks | Results

Alternative names:

Paul-Bunnell test; Forssman antibody test

Normal Values

The Paul-Bunnell and Forssman antibodies react with sheep and horse red blood cells causing clumping. No clumping (agglutination) with a titer lower than 1:56 is the normal result.

What Abnormal Results Mean

If the titer rises to around 1:220 in the 3rd or 4th week of infection, then gradually decreases in the following 4 weeks infectious mononucleosis may be diagnosed.

Ency. home > Test > H > Heterophil agglutination tests

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