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Culture, Group B Streptococcus
Test CodeCXGRB
Alias/See Also
Epic: LAB1377
Includes
Enrichment Culture and Detection of Group B Streptococcus
Preferred Specimen
Specimen Type: Swab
Sources: Vaginal/rectal combination swab
Collection Container: Eswab (liquid Amies medium, regular size Nylon flocked swab with white cap)
Specimen Volume: Swab
Instructions
Without using a speculum, collect the specimen first from the vagina (near the introitus) by inserting the swab about two centimeters and then from the rectum by inserting the same swab one centimeter through the anal sphincter.
Specimen Stability
Room temperature: 24 hours
Refrigerated: 48 hours
Frozen: Unacceptable
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, frozen specimen
Methodology
Enrichment Culture and Detection of Group B Streptococcus
Setup Schedule
Daily
Report Available
3-4 Days
Reference Range
No Growth
Performing Laboratory
Inova Laboratories
2832 Juniper Street
Fairfax, VA 22031
Lab Processing Instructions (Lab Use Only)
ICL CP: If a BBL red top swab is received, send specimen to microbiology to determine acceptability.
Last Updated: April 28, 2023
Last Review: N. Wolford, April 10, 2023