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Norovirus Genogroups I and II, Real-Time PCR

Test Code

35980

Preferred Specimen(s)

1 g or 5 mL of raw stool collected in a plastic screw-cap vial

Minimum Volume

0.5 g or 1 mL

Collection Instructions

The analytical performance characteristics of this assay have been determined by Quest Diagnostics. The modifications have not been cleared or approved by the FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Transport Container

Sterile plastic leak-proof container

Transport Temperature

Frozen

Specimen Stability

Room temperature: 48 hours
Refrigerated: 7 days
Frozen: 30 days

Reject Criteria

Specimen other than liquid or semi-formed stool • Stool in preservative or mixed with urine

Methodology

Real-Time Reverse Transcriptase Polymerase Chain Reaction (RT-PCR)

The analytical performance characteristics of this assay have been determined by Quest Diagnostics. The modifications have not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Performing Laboratory

Quest Diagnostics LLC
200 Forest Street, 3rd Floor, Suite B
Marlborough, MA 01752-3023

Setup Schedule

Set up: Mon-Fri (Day or night shifts), Sat-Sun (Day shift only); Report available: 1 day

Reference Range(s)

Norovirus Genogroup I Not detected
Norovirus Genogroup II Not detected

Clinical Significance

Norovirus test is a qualitative in vitro diagnostic test for the identification and differentiation of Norovirus genogroup I (GI) and genogroup II (GII) from raw or unpreserved unformed stool specimens collected from individuals with symptoms of acute gastroenteritis. Noroviruses classified into these two genogroups cause majority of the infections in human. The test utilizes real-time reverse transcriptase polymerase chain reaction (RT-PCR) to detect norovirus RNA. CDC guidelines recommend submitting stool specimens as early as possible during a suspected Norovirus gastroenteritis outbreak and ideally from individuals during prodromal or acute phase of illness (within 2-3 days of onset of symptoms).Common names associated with norovirus gastroenteritis are winter vomiting disease, stomach flu, acute nonbacterial gastroenteritis, and viral gastroenteritis.

LOINC®' Code(s)

The Result and LOINC information listed below should not be used for electronic interface maintenance with Quest Diagnostics. Please contact the Quest Diagnostics Connectivity Help Desk for more information at 800-697-9302.

NOTE: The codes listed in the table below are not orderable Test Codes.

Result
Code
Result NameLOINC CodeComponent Name
86020090Norovirus Genogroup IPending assignment
86020091Norovirus Genogroup IIPending assignment

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

LOINC assignment is based on a combination of test attributes, including the method used by the performing laboratory. For tests not performed by Quest Diagnostics, codes are assigned by the performing laboratory.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.