Group B Streptococcus PCR with Reflex Culture for Susceptibility
Label Mnemonic: GROUP B STRE
Epic code: LAB8018
Downtime form: A-1a Doctor-Provider Orders - Pathology Microbiology
Microbiology
BT 6004
356-2591 Bacteriology/Virology Section
Specimen(s):
Vaginal/Rectal
Collection Medium:
or
Copan Dual Swab (Hospital Stores #26200) ESwab Collection & Transport System (Hospital Stores #74541)
Delivery Instructions:
Deliver to laboratory immediately after collection. Specimens should be transported at 2-27°C.
Testing Schedule:
Daily - Batch analysis performed daily.
Turn Around Time:
24-48 hours (upon receipt in laboratory)
Reference Range:
Negative
Comments:
Collect Copan Dual Swab or Eswab. Swab the lower vagina, followed by the rectum using the same swab.

Send to Microbiology. In cases where known Penicillin allergy is indicated, a reflex culture for susceptibilities will be set up if the PCR testing is positive for Group B Streptococcus.

In cases where a Penicillin allergy is discovered after initial screening for GBS is complete, culture and susceptibility testing can be added onto the original sample for 7 days by ordering LAB2328 - Group B Strep Culture.
Methodology:
PCR amplification; Xpert GBS LB (Cepheid)
CPT Code:
87653