Beta Strep Group B Culture
This is a prenatal screening test for Group B streptococcus carriage. Collect this test at 35-37 weeks’ gestation. For use with genital and rectal swabs. It is recommended to collect from both Vaginal and Rectal sites. Cervical specimens or specimens collected with a speculum are NOT recommended.
Specimen Collection Requirements
Use culture collection and transport swab
Indicate specimen sources.
1 or 2 swabs in culture transport system
1 swab in culture transport system
Frozen specimen, nonsterile or leaking containers
Ambient: 72 hours; Refrigerated: 72 hours; Frozen: Unacceptable
Testing Information
Standard Bacterial Culture with broth enhancement
Samaritan Health Services
Reference Values
Last Updated:
Monday, September 17, 2018 02:29:40 PM