Results 221 to 230 of about 153,465 (260)
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Light-Chain Proteinuria: Spurious False-Negative Reaction to Sulfosalicylic Acid
Annals of Internal Medicine, 1985Excerpt To the editor: We report the case of a patient with multiple myeloma and renal failure secondary to heavy urinary excretion of kappa light chains.
N. STANLEY NAHMAN +5 more
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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.
Lili Miles +2 more
exaly +3 more sources
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.
Lili Miles +2 more
exaly +3 more sources
Pitfalls in Patch Testing: Minimizing the Risk of Avoidable False-Negative Reactions.
Dermatologic clinics, 2021Patch testing is the gold-standard diagnostic tool for the diagnosis of allergic contact dermatitis; unfortunately, it is a procedure with potential for errors, including false-negative reactions. Some of the factors responsible for this are likely unavoidable; however, others may potentially lie within the control of the user. Knowledge and management
Solveig, Ophaug +1 more
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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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International Journal of Cancer, 1974
AbstractTitration of anti‐complementary human sera may yield false negative or prozone reactions in anti‐complement immunofluorescence (ACIF) tests for antibodies to Epstein‐Barr virus‐associated nuclear antigen (EBNA) when the human complement (C') is added to the serum dilutions prior to charging of the target cell smears (two‐stage ACIF test).
W, Henle, A, Guerra, G, Henle
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AbstractTitration of anti‐complementary human sera may yield false negative or prozone reactions in anti‐complement immunofluorescence (ACIF) tests for antibodies to Epstein‐Barr virus‐associated nuclear antigen (EBNA) when the human complement (C') is added to the serum dilutions prior to charging of the target cell smears (two‐stage ACIF test).
W, Henle, A, Guerra, G, Henle
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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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Journal of Clinical Virology, 2003
Qualitative HIV-1 proviral DNA PCR tests have three main diagnostic applications. These include direct detection of viral sequences in the pre-seroconversion window period which may be positive up to 8 days prior to the development of HIV specific antibodies; resolution of indeterminate HIV serological tests and in the diagnosis of neonates born to ...
Philip, Cunningham +5 more
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Qualitative HIV-1 proviral DNA PCR tests have three main diagnostic applications. These include direct detection of viral sequences in the pre-seroconversion window period which may be positive up to 8 days prior to the development of HIV specific antibodies; resolution of indeterminate HIV serological tests and in the diagnosis of neonates born to ...
Philip, Cunningham +5 more
openaire +2 more sources
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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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 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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