reagin

(redirected from Rapid plasma reagin)
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Related to Rapid plasma reagin: syphilis

reagin

[rē′ā·jən]
(immunology)
The class of immunoglobulin that mediates allergic reactions such as asthma and urticaria. Also known as IgE; reaginic antibody.
References in periodicals archive ?
Blood samples were tested for syphilis using the rapid plasma reagin (RPR) and treponemal haemagglutination (TPHA) tests; CT and NG were diagnosed using a manual polymerase chain reaction assay on first-void urine samples.
One week later, the body rash had not resolved and the patient demanded a syphilis test; a 1:8 ratio on the rapid plasma reagin (RPR) test indicated syphilis; a confirmatory fluorescent treponemal antibody-absorption double staining (FTA-ABS) test also was reactive.
1) We report a case of secondary syphilis presenting with HIV coinfection which demonstrated a false negative reaction to the serum rapid plasma reagin (RPR) test, and discuss the expected increased incidence of the prozone effect of syphilis testing in HIV-infected patients.
None of the patients claimed to be sexually active, and tests were negative for herpes simplex virus, Epstein-Barr virus, and rapid plasma reagin.

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