Results 291 to 300 of about 537,576 (336)
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[False negative reactions in the serodiagnosis of cystic echinococcosis in humans].
Immunitat und Infektion, 1985Clinically supposed cases of echinococcosis can be strongly confirmed by application of serodiagnostic techniques. In certain cases false-negative reactions have to be taken into account. This has been observed in 4 out of 51 parasitologically confirmed cases.
K, Janitschke, H, Werner, L, Thomas
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Neuromuscular Disorders, 2007
We report a false negative histochemical reaction for myophosphorylase in the case of an 11 year old with fulminant Staphylococcus aureus. Due to increased creatine kinase levels and marked myoglobinuria a muscle biopsy was performed prior to death.
M, Cristina Pacheco +2 more
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We report a false negative histochemical reaction for myophosphorylase in the case of an 11 year old with fulminant Staphylococcus aureus. Due to increased creatine kinase levels and marked myoglobinuria a muscle biopsy was performed prior to death.
M, Cristina Pacheco +2 more
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Annales de dermatologie et de venereologie, 2009
This chapter reviews pitfalls and mistakes in patch testing. Most sources of false-positive and false-negative reactions are indicated and analysed. Cross-sensitivity among allergens is discussed and compound allergy is debated. Keys for establishing relevance are indicated, for a better reading and interpretation of patch testing by practitioners ...
C J, Le Coz, D, Sasseville
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This chapter reviews pitfalls and mistakes in patch testing. Most sources of false-positive and false-negative reactions are indicated and analysed. Cross-sensitivity among allergens is discussed and compound allergy is debated. Keys for establishing relevance are indicated, for a better reading and interpretation of patch testing by practitioners ...
C J, Le Coz, D, Sasseville
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The Pediatric Infectious Disease Journal, 2002
Diagnosis of HIV infection in early infancy generally relies on detection of HIV proviral DNA by PCR. However, many of the HIV DNA PCR assays currently in use are either not optimized or have not been validated for diagnosis of infection with non-subtype B HIV.
Nancy E, Kline +2 more
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Diagnosis of HIV infection in early infancy generally relies on detection of HIV proviral DNA by PCR. However, many of the HIV DNA PCR assays currently in use are either not optimized or have not been validated for diagnosis of infection with non-subtype B HIV.
Nancy E, Kline +2 more
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European Journal of Clinical Microbiology & Infectious Diseases, 1997
The aim of this study was to assess the presence of inhibitors in urine specimens causing false-negative results in a commercial Chlamydia trachomatis gap-filling ligase chain reaction (Gap-LCR) assay. On testing of urine samples by the Gap-LCR assay and urethral swab specimens by cell culture, 73 (19%) Chlamydia trachomatis positive subjects were ...
E S, Berg +4 more
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The aim of this study was to assess the presence of inhibitors in urine specimens causing false-negative results in a commercial Chlamydia trachomatis gap-filling ligase chain reaction (Gap-LCR) assay. On testing of urine samples by the Gap-LCR assay and urethral swab specimens by cell culture, 73 (19%) Chlamydia trachomatis positive subjects were ...
E S, Berg +4 more
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European Journal of Plant Pathology, 1995
A previously reported method for polymerase chain reaction (PCR) detection ofGaeumannomyces graminis was modified to simplify it, improve its specificity and decrease the possibility of contamination of the assay. The modified method also allowed discrimination between theG.
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A previously reported method for polymerase chain reaction (PCR) detection ofGaeumannomyces graminis was modified to simplify it, improve its specificity and decrease the possibility of contamination of the assay. The modified method also allowed discrimination between theG.
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False-Negative Reactions of the “Hemoccult” Slide Test
New England Journal of Medicine, 1978K L, Cohen, E J, Luminati
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Low Human Immunodeficiency Virus Titer and Polymerase Chain Reaction False-Negatives
Journal of Infectious Diseases, 1992ZAZZI, MAURIZIO +3 more
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[The Schilling test in Biermer's disease, problems of false negative reactions. Apropos of a case].
Annales de medecine interne, 1988A case of pernicious anemia in a 30 years old men is described. This disease was typical for the hematologic, immunologic and medullary patterns, for his evolution, but the Schilling test, a dual tracer method, did not confirm the diagnosis. The contradictory of this result can be explained wether by the bias of the test itself, or by the intestinal ...
A, Devidas +4 more
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FALSE NEGATIVE PATCH TEST REACTION CAUSED BY TESTING WITH DENTAL COMPOSITE ACRYLIC RESIN
International Journal of Dermatology, 1996L, Kanerva, T, Estlander, R, Jolanki
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