Streptococcus Group A Antigen, Adult
Also known as: Strep A Ag, Rapid Strep, GAS Ag
Use
A positive result from the antigen assay in a symptomatic adult patient is usually considered clinically significant. A culture backup of negative antigen results may be requested on adult patients if clinically indicated. Effective Date: 3/7/2022.
Special Instructions
Not provided.
Limitations
Not provided.
Methodology
Immunoassay
Biomarkers
Streptococcus pyogenes Ag
Protein
LOINC Codes
- 18481-2 - S pyo Ag Throat Ql
Result Turnaround Time
Not provided.
Related Documents
For more information, please review the documents below
Specimen
Other
Volume
Not provided
Minimum Volume
Not provided
Container
red cap transport tube with liquid Amies transport medium
Collection Instructions
Collect throat specimen using a dual swab (1 swab minimum) in a red cap transport tube with liquid Amies transport medium
Causes for Rejection
Cotton tip swabs; calcium alginate swabs; swabs containing charcoal or semi-solid media; swabs with wooden shafts; dry swabs; swabs from sources other than throat; swabs with a gel transport medium (blue cap)
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 48 hours |
Other tests from different labs that may be relevant