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Bacterial Antigens, Serum, Urine, Cerebrospinal Fluid
Test Code6890
Alias/See Also
"Bacterial Antigens for Meningitis, CSF
Cerebrospinal Fluid Agglutination Test for Bacterial Antigens (CSF, Serum, Urine)"
Cerebrospinal Fluid Agglutination Test for Bacterial Antigens (CSF, Serum, Urine)"
CPT Codes
87802; 87899(x3)
Includes
"Qualitative determination of the presence of antigens of H influenzae, S pneumoniae, N meningitidis, a limited number to serogroups, and group B Streptococcus
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Preferred Specimen
"Serum, urine (random), or cerebrospinal fluid (CSF)
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Instructions
"Submit only one specimen per request form. State source.
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Transport Temperature
"Refrigerate
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Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
"Inadequate quantity; inappropriate transport device; hemolysis; lipemia; gross bacterial contamination; improper labeling; specimen received after prolonged delay (usually more than 72 hours)
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Methodology
"Latex agglutination (LA) "
Setup Schedule
"Usual aseptic aspiration
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Limitations
"May be negative in early meningitis. Does not replace Gram stain and culture. The sensitivity of the tests vary from 50% to 100% depending on the specificity of the antibody and the concentration of antigen in the specimen. This test was most useful for the detection of serious H influenzae infection. Because of the availability of vaccine, this test is of extremely limited value.
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Reference Range
"Negative
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Clinical Significance
"Detect bacterial antigens in CSF, urine, and serum
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