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Vaginal Strep Screen (Group B Strep)
MessageA susceptibility is performed on patients with group B strep isolates who are allergic to penicillin.
CDC guidelines recommend prenatal Group B Strep (GBS) culture is performed on all women at 35 to 37 weeks gestation to identify GBS colonization.
CDC guidelines recommend prenatal Group B Strep (GBS) culture is performed on all women at 35 to 37 weeks gestation to identify GBS colonization.
Test Code
1236229506
Alias/See Also
C ST
Group B
Strep
Vaginal
Group B
Strep
Vaginal
CPT Codes
87081
Preferred Specimen
Specimen collected with an ESwab regular collection kit
Instructions
1. Vaginal: Wipe away excessive amount of secretion or discharge from the vaginal area. Carefully insert the swab into the lower one-third part of vagina, and sample secretions from the mucosa.
2. Rectal: Carefully insert the same swab, approximately 2.5 cm beyond the anal sphincter, and gently rotate to sample anal crypts.
3. Replace the swab in its container and properly label the swab, noting the specimen source of vaginal/rectal.
2. Rectal: Carefully insert the same swab, approximately 2.5 cm beyond the anal sphincter, and gently rotate to sample anal crypts.
3. Replace the swab in its container and properly label the swab, noting the specimen source of vaginal/rectal.
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 48 hours
Refrigerated: 48 hours
Refrigerated: 48 hours
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Patient not 35 - 37 weeks gestation
Improper specimen collection, storage, and transport
Improper specimen collection, storage, and transport
Reference Range
No group B Strep cultured
Performing Laboratory
Guthrie Clinic Lab
