Test ID: CGBS    
Group B Streptococcus (<i>Streptococcus agalactiae</i>) Culture, Varies

Useful For Suggests clinical disorders or settings where the test may be helpful

Screening for maternal colonization with Streptococcus agalactiae at 36 to 37 weeks gestation as a guide for intrapartum antibiotic prophylaxis to decrease the risk of infection by S agalactiae (group B streptococcus) in the infant


This test is utilized to assess for the presence of Streptococcus agalactiae (group B streptococcus) in pregnant women.

Reflex Tests Lists tests that may or may not be performed, at an additional charge, depending on the result and interpretation of the initial tests.

Test IDReporting NameAvailable SeparatelyAlways Performed
RMALDIdent by MALDI-TOF mass specNo, (Bill Only)No
GIDBacteria IdentificationNo, (Bill Only)No
STRPIdentification StreptococcusNo, (Bill Only)No
ISAEAerobe Ident by SequencingNo, (Bill Only)No
SIDCIdent Serologic Agglut Method 4No, (Bill Only)No

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

When this test is ordered, the reflex tests may be performed and charged.

Method Name A short description of the method used to perform the test

Conventional Culture Technique

NY State Available Indicates the status of NY State approval and if the test is orderable for NY State clients.


Reporting Name Lists a shorter or abbreviated version of the Published Name for a test

Grp B Strep (S. agalactiae) Culture

Aliases Lists additional common names for a test, as an aid in searching

Beta-Hemolytic Strep
Strep Group B
Group B streptococcus
Group B streptococci
S. agalactiae
Streptococcus agalactiae
Beta Strep