R/O Group B Beta Strep, Genital Culture

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General Information

Lab Name
R/O Gp B strep:genital culture
Lab Code
BSCGU
Epic Ordering
Culture Strep, Group B Genital
Description

Guidelines recommend universal prenatal screening for vaginal and rectal Group B streptococcal colonization of all pregnant women at 35- 37 weeks gestation.

Collecting both vaginal and rectal specimens increases the culture yield substantially compared with sampling the cervix or vagina alone.

Culture does NOT include susceptibility testing. Please indicate if susceptibility testing is required. Positive cultures will be held for 3 days after the final report is released if susceptibility testing needs to be added.

Synonyms
Beta Strep Group B Culture, Group B Strep Culture, Strep Group B Culture, Streptococcus agalactiae
Components

Interpretation

Reference Range
See individual components

Ordering & Collection

Specimen Type
vaginal & rectal swabs
Collection

Preferred: Collect vaginal and rectal specimens using the same swab in liquid Amies transport media (ESwab).

Acceptable: Vaginal and rectal specimens collected in other Amies gel or liquid swab.

Unacceptable: Universal Transport Medium (UTM), specimens received >2 days after collection, specimens received in expired swabs/transport media, specimens not received in transport media (dry), frozen specimens.

Handling Instructions

Stability
Ambient: 2 days; Refrigerated: 2 days; Frozen: Unacceptable

Quantity
requested: ESwab
minimum: ESwab

Processing

Processing

Performance

LIS Dept Code
Microbiology (MC)
Performing Location(s)
UW-MT Microbiology
206-520-4600

Clinical Lab, Room # NW177,
University of Washington Medical Center,
1959 NE Pacific street, Seattle, WA 98195
Other Locations/Notes

UW-MT Microbiology performs testing for UW-MT, UW-NW and UW-HV.

Frequency
Processed upon receipt
Available STAT?
No

Billing & Coding

CPT codes
87081
LOINC
582-7
Interfaced Order Code
UOW4925