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HelpCatalog ID Ag GpAStrep>Cul Group A Streptococcus Antigen with Culture Performed if Antigen Negative
Synonyms
GASS
Specimen Type
Aerobic Culture Swabs
Specimen Requirements
Two swabs must be submitted.
Storage and Transport
Ambient temperature and transport to Microbiology Laboratory within 1 hour of collection.
Causes for Rejection
Improper collection; improper labeling; delay in transport; only one swab submitted
Reference Range
Negative Group A Streptococcus antigen test, no beta strep isolated.
Test Consists
Group A Streptococcus antigen test with culture screen for Group A Streptococcus if antigen negative. This is the required test for patients <18 years old.
Turn Around Time
Final negative culture result in 48 hours.
Performing Lab
Microbiology BA-1672 721-2807
CPT / HCPCS Code
Antigen test 87430; Culture 87081