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September 1970

FTA-ABS Test in Pregnancy: A Probable False-Positive Reaction

Author Affiliations


From the Department of Dermatology, University Hospitals of Cleveland, and the School of Medicine, Case Western Reserve University, Cleveland.

Arch Dermatol. 1970;102(3):322-325. doi:10.1001/archderm.1970.04000090084014

The fluorescent treponemal antibody absorption (FTA-ABS) test has gained wide acceptance as the standard by which the diagnosis of syphilis is confirmed and false-positive reactions to reagin tests for syphilis are defined. A probable false-positive reaction to the FTA-ABS test was observed in a patient during pregnancy. This emphasizes the need for continued caution in the interpretation of the results of a single FTA-ABS test without adequate historical and clinical information.

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