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Labcorp Oklahoma, Inc.
Test Directory


Index:

Group B Streptococcus Culture

Order Name C STREP B
Test Number: 6000255
Revision Date 10/12/2023
Test Name Methodology LOINC Code
Group B Streptococcus Culture
Culture  
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred See Instructions Swab Copan eSwab - White (Regular size) Room Temperature
Alternate 1 See Instructions Swab Copan eSwab - Green (Mini-tip) Room Temperature
Instructions At 35 to 37 weeks gestation, vaginal swab specimens are collected from the lower third of the vagina (vaginal introitus - without using a speculum) and from the anal canal (a single swab from the vagina then the anal canal, or a swab collected from each site). Cervical swabs, perianal, perirectal, or perineal specimens are NOT acceptable. Swabs should be set up within 2 days for optimal recovery. However, culturing specimens greater than 24 hours after collection may yield false-negative results and is strongly discouraged. Susceptibility testing is not performed routinely. If susceptibility is needed due to penicillin allergy, please document "Patient is allergic to penicillin, please perform susceptibility if positive" on the requisition.
GENERAL INFORMATION
Testing Schedule Daily 
Expected TAT 2 Days  
Clinical Use Detects Group B Streptococcus (GBS) 
CPT Code(s) 87081
Lab Section Microbiology