1st order laboratory parameters – obligatory laboratory tests.
- EBV rapid test for the detection of antibodies.
- Serological tests such as the EBV IgM/IgG ELISA and EA (early antigen).
- Small blood count [total leukocyte count is usually only mildly to moderately elevated]
- Differential blood count [relative lymphocytosis (total number of lymphocytes in the blood increased) or increased atypical and immature lymphocytes (belong to the white blood cells) and monocytosis (increase in the number of monocytes)]
- Lactate dehydrogenase (LDH) [obligatory elevated]
Laboratory parameters 2nd order – depending on the results of the history, physical examination, etc. – for differential diagnostic clarification.
- EBV immunoblot – In diagnostic problem cases.
- HIV test – In mononucleosis-like clinical picture.