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Vanderbilt Pathology Laboratory Services

Test Directory



RSV ANTIGEN DETECTION (RSG)

Department: Virology
Test Synonym(s): RSG, Respiratory Syncytial Virus
CPT Codes: 87420
Methodology: Immunochromatographic assay; negative antigen on inpatient or employee reflexes to rapid shell vial culture.
Reference Range: Negative
Tube Type: Wash, aspirate in sterile leakproof container; flocked swab preferred but dacron/rayon swab accepted in universal transport medium,3ml or 1-2 ml saline
Specimen: Material from respiratory source only; Nasopharyngeal (NP) swab/aspirate/wash or nasal wash preferred
Volume: 3 mL UTM or sterile saline
Minimum Volume: 1 mL UTM or sterile saline
Temperature: Store refrigerated (2-8 C), do not freeze, transport on wet ice
Stability: Store refrigerated (2-8 C). Samples that are older than 24 hours will receive comment.
Reasons for Rejection: Non-respiratory source, calcium alginate or wooden-shaft swab, dry swab
Days Performed: Daily
Times Performed: Continuous; Processed ASAP upon receipt
TAT: 30 minutes - 1 hour
Special Instructions: Send to lab immediately - put swab in UTM - No wooden shaft or calcium alginate tip swabs. Add universal (viral) transport medium (UTM) to respiratory trap. Specify source. Negative antigen results on inpatients confirmed by rapid shell vial culture. A negative result does not rule out infection with RSV. This test is suitable for the pediatric population and is not intended for use in an adult population.


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