UW Hospital and Clinics Lab Test Directory
| Test Name: |
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Strep. pneumoniae Ag, Urine
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| Test Code(s): |
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SPAG / GM4545
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| CPT Code(s): |
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87449
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| Methodology: |
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Immunochromatographic Assay
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| Days Performed: |
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Daily, 24 hours.
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| Turnaround Time: |
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Stat: 1 hour.
Routine: 4 hours.
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Specimen Requirements
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| Specimen: |
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Random urine
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| Collection Container: |
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Preferred: Sterile screw cap container
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| Collection Volume: |
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Preferred: 2 mL
Pediatrics: 0.5 mL
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| Sample Analyzed: |
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Urine aliquot
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| Volume Required: |
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Preferred: 2 mL
Pediatrics: 0.5 mL
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| Specimen Transport: |
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Transport specimen to UWHC Core Laboratory (B4/220) immediately. Transport with coolant pack if coming from outreach location.
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| Unacceptable Criteria: |
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Urine samples on children less than 5 years old are not acceptable for this method.
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| Stability: |
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Ambient: 24 hours
Refrigerated: 2 weeks
Frozen: 2 weeks
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Interpretation
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Expected Results:
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Negative
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| Additional Information: |
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Pneumococcal antigenuria can persist for six weeks following an episode of pneumococcal pneumonia. Pneumococcal vaccine can give a positive test for up to five days following immunization. The accuracy of the Binax NOW test in urine has not been proven in children under 5 years of age. Requests for Strep. pneumoniae Ag on urine should not be made for this age population.
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pneumococcal
strep pneumococcal
pneumococal
pnuemo
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