False positive latex tests negative by ELISA for toxoplasma IgG.
نویسندگان
چکیده
منابع مشابه
False positive latex tests for cryptococcal antigen in cerebrospinal fluid.
on the instrument, its date, its inventor Lee or the manufacturing or supplying firm ofAL Hawkins Ltd, London. Another machine "The Sedigraph" made by a Swiss firm after the Second World War acted in a similar fashion with rather more sophistication. One of these instruments is also in the collection. The collection of old instruments nlow numbers about 1000 items which, it is hoped, will form ...
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Three cases of false-negative cerebrospinal fluid latex agglutination test results for patients with culture-positive cryptococcal meningitis are reported. False-negative results occurred in settings of low cryptococcal antigen concentrations in cerebrospinal fluid and were dependent on the latex agglutination test kit used. Investigation of each case revealed that prozone phenomena or interfer...
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Serum specimens from patients admitted to a respiratory disease hospital were examined by the histoplasmin latex agglutination, the complement fixation, and the agar gel immunodiffusion tests. Of 300 sera examined, 21 (7.0%) gave an apparent false positive reaction at a dilution of 1:16 or greater. Fourteen (66%) of the 21 patients studied has culturally proven tuberculosis. One patient each ha...
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ژورنال
عنوان ژورنال: Journal of Clinical Pathology
سال: 1989
ISSN: 0021-9746
DOI: 10.1136/jcp.42.2.204