Days Set Up
Performed during normal operational hours of the designated POC testing areas.
Analytic Time

Approximately; 30 minutes for positive results, and 30-50 minutes for determination of negative results.

MiChart Code
SARS-CoV-2 (COVID-19), Flu A/B and RSV by PCR, Point of Care Nasopharyngeal
Soft Order Code

Test Updated:


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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

Visit our provider FAQ and learn about common questions to ordering tests.

Test Overview

Test Methodology

Cepheid GeneXpert Xpress- RT PCR

Test Usage

The Cepheid Xpert Xpress SARS-CoV-2/Flu/RSV assay is a rapid, real-time RT-PCR test intended for the simultaneous qualitative detection and differentiation of SARS-CoV-2, influenza A, influenza B, and respiratory syncytial virus (RSV) viral DNA in either nasopharyngeal swab, nasal swab or nasal wash/aspirate specimens collected from individuals suspected of respiratory viral infection consistent with COVID-19 by their healthcare provider. The Cepheid Xpert Xpress SARS-CoV-2/Flu/RSV assay is only for use under the Food and Drug Administration’s Emergency Use Authorization.

Fact Sheet for Healthcare Providers: ""
Fact Sheet for Patients:""

Reference Range

Not Detected for influenza A, influenza B, respiratory syncytial virus, and SARS-CoV-2

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Offsite

Gently insert mini-tipped flocked nasopharyngeal swab (swab on flexible plastic shaft) through the nostril and into the nasopharynx, reaching the posterior nasopharynx. Gently rotate swab, then remove, and break swab off into tube of transport media. Make sure the swab is fully immersed in the transport media, and that the shaft is short enough to completely tighten the cap. For best results testing should be performed immediately after collection. Obtaining columnar epithelial cells will enhance reliability of viral detection. Please see CDC for current sample collection guidance:….

Red Top Tube
Minimum Volume

Billing Information

CPT Code
Pro Fee Code

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.