Group B Streptococcus (GBS) Test

CPT code: 87653
ORDERING rECOMMENDATION

Detect Group B Streptococcus (GBS) DNA from vaginal/rectal swab specimens

specimen required

Specimen Type:

Vaginal/rectal swab

Collection Tube:

Xpert Swab Specimen Collection Kit, Request Supplies

Minimum Volume:

3.0mL viral transport media

Specimen Stability/Storage:

Room Temperature (15-25°C): 24 hours; Refrigerated (2-8°C): 6 days

Unacceptable Conditions:

Frozen specimens

Shipping Requirements:

Call 866-983-0667 to schedule courier pickup

Stability:

Refrigerated: 6 days

devlab test code
metholodogy

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Nucleic Acid Amplification

performed
reported

Daily and STAT (Monday – Friday)

Within 24 hours from receipt (Monday – Friday)

ALTERNATIVE NAMES

Group B Strep, Strep, GBS

SUBMIT WITH ORDER

Test Requisition

Results Interpretation

Positive:

Result is presumptive for Group B Strep colonization

Inconclusive:

Results are inconclusive; please consider submitting a new specimen

Negative:

Group B Strep DNA not detected

ADDITIONAL INFORMATION

The Group B Streptococcus test is useful to identify candidates for intrapartum antibiotic prophylaxis to prevent neonatal GBS disease by screening pregnant women at 35–37 weeks of gestation to determine their GBS colonization status.