Group B Streptococcus (GBS), Molecular Detection, Penicillin Allergy

Synonyms

  • GROUP B BETA STREP PCR - PENICILLIN ALLERGIC
  • LAB11755

Cerner Name

Group B Beta Strep PCR - Penicillin Allergic

Clinical Info

This test is for perinatal screening of Group B Streptococcus (GBS) in women with severe penicillin allergy.

Specimen Sources

Vaginal/Rectal

Specimen Types

Swab

Specimen Volume

Container

Swab

Collection Instructions


Sterile Swab in a sterile transport media. ESwab is preferred. Vaginal-rectal swabs generally have higher yield than vaginal swabs alone 
1. Using 1 swab in sample lower vagina followed by rectum.
2. Return swab to sterile culture transport tube (Eswab, Amies, Stuart media) to ensure specimen preservation.
3. Label tube with patient’s name (first and last), date and actual time of collection, and type of specimen.
4. Maintain sterility and forward promptly at ambient temperature.
Note: Specimen source is required on request form for processing.

Transport Instructions

Specimen Stability

Room Temp -  24 hours, Refrigerated (2-8 C) 5 days

Methodology

Group B DNA Detection by Polymerase Chain Reaction (PCR)
If “Group B DNA Detection” is positive, reflex to sensitivity.

Days Performed

Monday through Sunday

Performing Laboratories

Northwell Health Laboratories

CPT

87653

PDM

6350375

Results
Component Name Base Name Common Name External Name
SOURCE GROUP B STREP SRCEGBS SOURCE GROUP B STREP Source GBS
GRP B BETA STREP DNA (PCR) GBS GRP B BETA STREP DNA PCR Group B Strep (GBS)
GRP B BETA STREP INTERP GBS GRP B BETA STREP INTERP Group B Strep (GBS) Interpretation

Result Interpretation

No Beta Strep Group B Isolated

Forms
ID Molecular LAB11755 build edit