Test Overview
Test Methodology

Immunochromatographic Membrane Assay (ICT)

Test Usage

Rapid diagnosis of pneumococcal pneumonia, especially when the patient has received empirical antibiotics.

Reference Range *

No Streptococcus pneumoniae antigen detected.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

A negative result is a presumptive negative for pneumococcal pneumonia, suggesting no current or recent pneumococcal infection. However, infection due to Streptococcus pneumoniae cannot be ruled out since the antigen present in the specimen may be below the detection limit of the test. Streptococcus pneumoniae vaccine may cause false-positive results, especially in patients who have received the vaccine within 5 days of having the test performed.

Test Details
Days Set Up
Daily
Analytic Time

Same day 1 hour

Soft Order Code
SPAG
MiChart Code
Streptococcus pneumonia Antigen, Urine
Synonyms
  • Pneumococcal Antigen
  • Streptococcus pneumoniae Antigen, Urine
  • SPAG
  • STREP PNEUMONIAE ANTIGEN
  • Streptococcus pneumoniae Urinary Antigen
Laboratory
Microbiology
Section
Microbiology
Specimen Requirements
Collection Instructions

Collect random urine; refrigerate (stable up to 14 days refrigerated). CSF specimens will also be accepted.

Alternate Specimen
Boric acid preservative (urine culture transport)
Normal Volume
1 mL urine
Minimum Volume
1 mL urine
Billing
CPT Code
87899
Fee Code
LA028
LOINC
31969-9
Resources