Laboratory Services

Streptococcus pneumoniae Antigen, Urine

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Updated Test Information:

Test Description
Streptococcus pneumoniae Antigen, Urine
Synonym(s)

Pneumococcal Pneumonia; Pneumococcus Antigen; S. pneumoniae; Streptococcus pneumoniae

Test ID
SPNEU
General Information

Useful for rapid diagnosis of pneumococcal pneumonia

Specimen Type

Random Urine

Specimen Requirements

Urine Cup

Specimen Collection / Processing Instructions

  • Collect a random urine specimen

  • No preservative

  • Excessively bloody or very turbid specimens containing protein, cells, or particulates will be canceled as they can inhibit the function of the test

  • Centrifuging to remove particulates is not approved

  • Specimens with any dyes or unnatural color are not acceptable and will be canceled

Stability

  • Refrigerated (preferred): 14 days

  • Frozen: 14 days

  • Ambient: 24 hours

Unacceptable Specimen Conditions

  • Gross hemolysis

  • Turbid specimen

  • Presence of dyes

  • Unnatural color

Limitations

  • Pneumococcal pneumonia is best diagnosed by sputum culture

  • A negative result does not exclude Streptococcus pneumoniae infection

  • A diagnosis of S pneumoniae infection must take into consideration all test results, culture results, and the clinical presentation of the patient

  • S pneumoniae vaccine may cause false-positive results, especially in patients who have received the vaccine within 5 days of having the test performed

  • This assay has not been validated for use with body fluids other than urine or cerebrospinal fluid

  • The performance of this assay in patients who have received antibiotics for more than 24 hours has not been established

  • The accuracy of this assay has not been proven in small children

Methodology

Immunochromatographic Membrane Assay

Estimated TAT

1 day

Testing Schedule

Monday-Sunday

Retention

14 days

CPT Code(s)

87899

Additional Information
Minimum Sample Volume

0.25 mL

Reference Range

Negative

Performing Lab

Mayo

LOINC Code(s)

77949-6