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Streptococcus pneumoniae Antigen, Urine or Cerebrospinal Fluid

CPT 87899
Synonyms
  • BinaxNow® Streptococcus Antigen

Test Details

Methodology

Immunochromatographic membrane assay; bacterial culture when criterion is met.

Result Turnaround Time

2 - 3 days

Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.

Related Documents

Use

Detects S pneumoniae in the urine of patients with S pneumoniae and in the CSF of patients with meningitidis.

Special Instructions

A body fluid culture will be performed if not initially requested for S pneumoniae for antigen-negative CSF specimens (per the College of American Pathologists [CAP] guidelines)

Limitations

Testing is not recommended for persons who have received the Streptococcus pneumoniae vaccine within the previous five days (false-positive reaction). The accuracy in urine has not been proven in young children.

References

Murray PR, Baron EJ, Jorgensen JH, Pfaller MA, Yolken RH. Manual of Clinical Microbiology. 8th ed. Washington, DC: ASM Press;2003:322.

Specimen Requirements

Specimen

Clean-catch urine or cerebrospinal fluid (CSF)

Volume

1 mL

Minimum Volume

0.5 mL

Container

Plastic urine culture container; CSF in sterile container

Collection Instructions

Clean-catch urine or CSF specimen per instructional protocol

Storage Instructions

Refrigerate. If specimen is not tested within seven days, freeze at -20ºC or below.

Causes for Rejection

Quantity not sufficient for analysis; inappropriate specimen source; inappropriate specimen collection device; specimen stability exceeded; name discrepancy between the name on the specimen container and the name in the computer or on the test request form

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
183009 Streptococcus pneumoniae Ag 31969-9 183037 Specimen Source 31208-2
183009 Streptococcus pneumoniae Ag 31969-9 183011 Streptococcus pneumoniae Ag 31969-9
183009 Streptococcus pneumoniae Ag 31969-9 183044 Body Fluid Culture, Sterile 45335-7
183009 Streptococcus pneumoniae Ag 31969-9 183045 Organism ID 636-1
183009 Streptococcus pneumoniae Ag 31969-9 183113 Please Note: N/A
Order Code183009
Order Code NameStreptococcus pneumoniae Ag
Order Loinc31969-9
Result Code183037
Result Code NameSpecimen Source
UofM
Result LOINC31208-2
Order Code183009
Order Code NameStreptococcus pneumoniae Ag
Order Loinc31969-9
Result Code183011
Result Code NameStreptococcus pneumoniae Ag
UofM
Result LOINC31969-9
Order Code183009
Order Code NameStreptococcus pneumoniae Ag
Order Loinc31969-9
Result Code183044
Result Code NameBody Fluid Culture, Sterile
UofM
Result LOINC45335-7
Order Code183009
Order Code NameStreptococcus pneumoniae Ag
Order Loinc31969-9
Result Code183045
Result Code NameOrganism ID
UofM
Result LOINC636-1
Order Code183009
Order Code NameStreptococcus pneumoniae Ag
Order Loinc31969-9
Result Code183113
Result Code NamePlease Note:
UofM
Result LOINCN/A