NOROVIRUS 1 & 2 by PCR

Message

Send to the Molecular department at Alverno

Test Code

NOROA

Alias/See Also

Norovirus I or 1 PCR; Human Calcivirus; Norovirus RNA; Norwalk Virus; Nororvirus RNA, RT-PCR; Norovirus I and II PCR

CPT Codes
87798 x2

Includes

Norovirus group 1
Norovirus group 2

Preferred Specimen

Stool in ParaPak Cary Blair transport media

Other Acceptable Specimens

ParaPak (White - no additive) or
Sterile Container

Instructions

Collect fresh, unformed stool in a clean container. Transfer unformed stool to Cary Blair media and refrigerate. Alternatively, send unpreserved stool in sterile container with screw top lid.

Transport Temperature

Refrigerate or freeze

Specimen Stability

2-8°C up to 48 hours
Frozen samples stable up to 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Formed stool samples will be rejected

Methodology
PCR - Polymerase Chain Reaction

Setup Schedule

M, Tu, W, Th, F, Sa, Su

Report Available

Within 24 hours of receipt at the performing laboratory.

Reference Range

Not detected

Clinical Significance

Norovirus infections are caused by a highly contagious RNA virus with abrupt symptoms of vomiting and watery, non-bloody diarrhea. While generally self-limiting in 24 to 48 hours, testing is indicated for the immunocompromised or hospitalized patients for infection control purposes and to limit the use of antibiotics. This test detects Norovirus groups 1 and 2.

Performed By
Alverno Laboratories

Performing Laboratory
Alverno Central Lab
NMB16 (Molecular Biology, CEPHEID)

Last Updated: June 8, 2023

The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.