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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, positive, indeterminate. A negative result does not rule out infection with RSV.
Tube Type: Wash, aspirate, lavage 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 and employees confirmed by rapid shell vial culture.


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