Streptococcus pneumoniae Antigen

Test Code

SPNAG

Alias/See Also

Epic: LAB2423

Preferred Specimen

Specimen Type: Urine
Collection Container: Sterile container
Specimen Volume: 1.0 mL

Minimum Volume

1.0 mL

Instructions

Collect random urine specimen into a sterile container.

Transport Container

Sterile container

Specimen Stability

Room temperature: 24 hours
Refrigerated: 14 days
Frozen: Not defined

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Rejection will occur for the following reasons: improperly labeled specimen, insufficient volume, specimen not submitted in appropriate transport container, Room temperature urine that arrives >24 hours after collection, Leaking or broken containers

Methodology

Immunochromatographic

Setup Schedule

Daily

Report Available

1 day

Limitations

A negative result does not exclude infection with S. pneumoniae. S. pneumoniae vaccine may cause false positive results in urine in the 48 hours following vaccination.

Reference Range

Negative for S. pneumoniae Antigen

Clinical Significance

A positive test suggests that the patient has pneumococcal pneumonia. A negative test is a presumptive negative for pneumococcal pneumonia, suggesting no current or recent pneumococcal infection. Infection due to S. pneumoniae cannot be ruled out since the antigen present in the specimen may be below the detection limit of the test.

Performing Laboratory

Inova Laboratories

2832 Juniper Street

Fairfax, VA 22031

Last Updated: February 23, 2024
Last Review: N. Wolford, February 21, 2023

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.