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HelpTest ID NBLD5011 Group B Strep NAD, Penicillin Allergy, Reflex to Susceptibility
AKA
GBS
Specimen Type/Requirements
Red Top (Double Swab Culturette) - Vaginal/Rectal
Swabbing both the lower vagina and the rectum increases the culture yield substantially compared to swabbing the cervix or vagina without rectal sampling.
Rectovaginal swab collection at 35-37 weeks gestation remains the recommendation.
Test is not affected by hemolysis or lipemia.
Stability/Transport
| Room Temperature | 24 hours | |
|---|---|---|
| Refrigerated | 6 days | Preferred for transport |
| Frozen | Not Acceptable |
Performed Test Frequency
Monday through Sunday
Additional Information
If Group B Strep by NAD is detected, Lab Only Group B Strep Reflex Susceptibility (LABS0600) will be ordered at an additional charge.
Methodology
Molecular
Performing Lab
Sanford Laboratories Sioux Falls
CPT
87150