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The mononuclear spot test or monospot test, a form of the heterophile antibody test, [1] is a rapid test for infectious mononucleosis due to Epstein–Barr virus (EBV). It is an improvement on the Paul–Bunnell test. [2] The test is specific for heterophile antibodies produced by the human immune system in response to EBV
Heterophile antibodies are IgM antibodies with affinity for sheep and horse red blood cells. They appear during the first week of infectious mononucleosis symptoms, 3–4 weeks after infection and return to undetectable levels 3 to 6 months after infection. Heterophile antibody is a fairly specific but insensitive test for EBV.
The term "infectious mononucleosis" was coined in 1920 by Thomas Peck Sprunt and Frank Alexander Evans in a classic clinical description of the disease published in the Bulletin of the Johns Hopkins Hospital, entitled "Mononuclear leukocytosis in reaction to acute infection (infectious mononucleosis)". [71] [76] A lab test for infectious ...
Several routine tests are performed including blood typing (determination of ABO/Rh status), antibody screening, serologic cross-matching, direct antiglobulin testing, and antibody identification. Beyond the presence of naturally occurring antibodies (isohemagglutinins) to the ABO and Rh(D) blood group antigens, additional immune-stimulated ...
Blood test results for persons with infectious mononucleosis include an elevated white blood cell count, an increased percentage of atypical mononuclear cells. Liver enzymes are often elevated. A positive "mono spot" test is useful in confirming the diagnosis but a negative result does not rule out primary EBV infection.
In 1967, a technician in their laboratory developed mononucleosis and they were able to compare a stored serum sample, showing that antibodies to the virus developed. [ 77 ] [ 79 ] [ 80 ] In 1968, they discovered that EBV can directly immortalize B cells after infection, [ 43 ] mimicking some forms of EBV-related infections, [ 78 ] and ...