Laboratory Services

Group B Streptococcus by PCR

Name: Incyte Diagnostics
Address: 13103 E Mansfield Ave, Spokane Valley, Washington, 99216, USA
Telephone: +1-

Updated Test Information:

Test Description	Group B Streptococcus by PCR
Synonym(s)	Beta Group B, Group B strep, GBS, Beta Strep
Test ID	GBSPCR Reflex susceptibility testing for penicillin-allergic patients: add free text to AOE Source or check box on paper requisition
Specimen Type	Vaginal/rectal swab
Specimen Requirements	A vaginal and rectal collection using the preferred eSwab (one or two swab) collection device. Swabs in Amies or liquid Stuart's transport medium are also acceptable. Do not use gel media.
Specimen Collection / Processing Instructions	Using the recommended eSwab or other approved bacterial transport medium, begin by swabbing the lower vagina and the rectum through the anal sphincter. This increases the detection of colonization compared with sampling the cervix or vagina alone according to CDC 2010 recommendations. Replace the swab(s) to the collection device and label the container with the patient's full name and another unique identifier. If the patient is allergic to penicillin, please order reflex susceptibility testing on the requisition to confirm the use of an appropriate alternative antibiotic.
Required Information	Complete the Incyte Diagnostics requisition with the patient's demographics and relevant clinical history. Label specimen container with the patient's full first and last name, second unique identifier, and specimen source/site. Note the time of collection.
Stability	Room temperature: 24 hours Refrigerated: 4 days Frozen (after introduction to Lim broth): 30 days
Unacceptable Specimen Conditions	Unlabeled specimens, specimens in incorrect medium, expired collection devices, specimens subjected to freezing or excessive heat are unacceptable.
Department (code)	Molecular Pathology
Methodology	Real-time polymerase chain reaction (PCR)
Estimated TAT	1–2 business days from receipt Susceptibility testing for positive GBS on penicillin-allergic patients is an additional 2-3 business days
Testing Schedule	Monday–Sunday
Retention	Inoculated Lim broth specimen is retained frozen for 30 days
CPT Code(s)	87653 87081 and 87186 - for reflex antibiotic susceptibility testing
Collection File	View/Download File