Culture for Group B Streptococcus

CERNER / EPIC MNEMONIC:

C STREP B

POE DESCRIPTION:

CU GROUP B STREPTOCOCCUS; RECTAL CULTURE FOR BETA STREP; VAGINAL CULTURE FOR BETA STREP

CPT CODE: 87081
TEST INFORMATION: Test includes culture in liquid enrichment broth followed by subculture to solid media. Isolation and identification of Group B Streptococcus ONLY.
DAYS PERFORMED: Daily, 24 hours
TURNAROUND TIME:

1-3 days

SPECIAL INSTRUCTIONS: Specimen should be transported as soon as possible. When transportation is delayed, leave at room temperature.
CONTAINER TYPE: Copan Swab® II
COLLECTION:

Do not use lubricant on speculum. Cervical mucus should be removed before collecting endocervical specimens. Move the swab from side to side at the site allowing several seconds for absorption of organisms by the swab. Return the swab to the transport tube. A single swab may be used to collect and submit genital/rectal specimens. The genital specimen should be obtained first.

Preferred specimen genital/rectal on pregnant females.

SPECIMEN REQUIREMENTS:

Vaginal, cervical, rectal, or other gynecological specimen.  Vaginal/rectal swab is the optimal specimen for screening pregnant women at 35 - 37 weeks of gestation, results may be compromised if only a vaginal swab is submitted.

REJECTION CRITERIA: Inappropriate specimen container, inappropriate specimen source
MINIMUM VOLUME: One swab
HANDLING INSTRUCTIONS: Specimen should be transported as soon as possible. When transportation is delayed, leave at room temperature.
REFERENCE RANGE: No Group B Streptococcus isolated
LIMITATIONS OF TEST: Specimen will be screened for Group B Streptococcus ONLY. Because Group Streptococcus is uniformly susceptible to penicillin, susceptibility testing will NOT be performed routinely.
METHODOLOGY: Culture in a broth medium selective for Group B Streptococcus followed by subculture to conventional culture media.
LAST UPDATED:

5-19-2014

TEST SYNONYM(S):Group B Beta-Hemolytic Streptococcus Culture; Beta-Hemolytic Group B Streptococcus Culture