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Ann Neurol. 1979 Jul;6(1):68-9.

The CSF-FTA test and the significance of blood contamination.

Abstract

Although the fluorescent treponemal antibody absorption (FTA-ABS) test has found wide application in the diagnosis of syphilis, the cerebrospinal fluid fluorescent treponemal antibody (CSF-FTA) test is still controversial in the diagnosis of neurosyphilis. We found the CSF-FTA test extremely sensitive to contamination with FTA-ABS-reactive blood at concentrations in CSF that could not be detected by visual inspection. Interpretation of a reactive test should be made with caution if red cells are present in CSF.

PMID:
389149
DOI:
10.1002/ana.410060116
[Indexed for MEDLINE]

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