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Laboratory Test Directory

Rapid RSV Ag


Name Method Department Units
Rapid RSV Ag Immunofluorescent assay
Core Lab, Urinalysis

Battery Members

RSV Antigen

Specimen Requirements

Nasal wash

Container Type Container Size Specimen Volume

Sterile container

N/A 2.5 mL

Room temperature - 4 hour(s)
Refrigerated - 24 hour(s)

Specimen Preparation

  • Transport to the lab immediately after collection

Nasopharyngeal swab

Container Type Container Size Specimen Volume

Puritan HydraFlock Mini-tip Swab (Teal /black cap)


Room temperature - 1 hour(s)
Refrigerated - 1 hour(s)

Specimen Preparation

  • Specimen must be delivered to NCH Laboratory Service Center by parent or legal guardian
  • Transport to the lab immediately after collection

Reasons for Rejection

  • Anterior nares specimen
  • Improper swab
  • Not received at proper temperature
  • Not received within specified time frame
  • Swab in any liquid viral transport media
  • Contaminated with blood


This test is offered ONLY to the Emergency Department,Urgent Care and select Laboratory Service Centers locations for patients who will be managed as outpatients. OUTPATIENT specimen must be transported to one of the following Laboratory Service Centers or Nationwide Children’s Close to Home Centers with laboratory services (Canal Winchester, Dublin, East Broad, Hilliard, Marysville, Newark, Springfield, Westerville, and Washington Court House) by the parent or legal guardian, within 1 hour of collection. For patients to be admitted to the hospital, consider ordering test FARVPP (Respiratory Infection Array; performed once per day, 7 days a week) which has higher sensitivity. A posterior nasopharyngeal swab collection submitted in the swab transport tube is the preferred collection method. Sofia RSV testing is not recommended for patients GREATER than 7 years of age, as test sensitivity is low for this population. Results should be interpreted with caution.

CPT Code

  • 87420