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Department of Health Services

Public Health Regional Laboratory

Respiratory Panel: Xpert Xpress SARS-CoV-2 FluAB RSV, (NAAT)

A real-time RT-PCR assay for detection and differentiation of SARS-CoV-2, Influenza A, Influenza B, and RSV in respiratory specimens.

Portal Ordering Code

RESP-XP

CPT Code(s)

87637

Fee Schedule

Storage and Transport Criteria
Specimen Storage Specimen Transport
Acceptable Specimens
Minimum Volume
Frozen Range
-70°C - 0°C
Refrigerated Range
0.1°C - 8°C
Room Temperature Range
8.1°C - 30°C
Stability at
4°C - 25°C
Nasopharyngeal (NP) swab in VTM or Nasal wash/aspirate in VTM 300 μL Reject Acceptable at 2°C – 8°C up to 7 days Acceptable at 15°C – 30°C up to 24 hours in VTM Refrigerated or transport on cold packs preferred
Includes

If flu A/B Positive further characterization performed and fowarded CDPH as appropriate.

Methodology

RT-PCR

Assay Category

EUA (Emergency Use Authorization)

Reference Range

See laboratory report

Alternative Names
  • Flu A/B
  • RSV
  • SARS-CoV-2
  • COVID
Preferred Specimen(s)
  • Nasopharyngeal (NP) swab in VTM
  • Nasal wash/aspirate in VTM
Alternative Specimen(s)

N/A

Minimum Volume

300 μL

Special Instructions

N/A

Reject Criteria
  • Inadequately labeled specimens
  • Leaking specimens
  • QNS (quantities not sufficient)
  • Cotton or calcium alginate swabs
  • Swabs in Amies medium
  • Swabs with wooden shafts
  • Specimens not meeting the Storage & Transport criteria upon receipt at laboratory
Setup Schedule

Testing is performed on an as-needed basis.

Turn around time (TAT)

1 business days from arrival at the lab