Test Overview
Test Methodology

Polymerase Chain Reaction (PCR)

Test Usage

Diagnosis of gastrointestinal disease (diarrhea or vomiting) caused by norovirus genogroups 1 and 2.

Reference Range *

Negative

Test Limitations

A negative result does not exclude norovirus infection.

Test Details
Days Set Up
Monday - Friday
Analytic Time

2 - 3 days

Soft Order Code
LNORO
MiChart Code
Norovirus Antigen (Sendout)
Synonyms
  • Norwalk Virus, Stool
  • FNLV
  • Norwalk-Like Virus (NLV)
Laboratory
Sendout
Reference Laboratory
Mayo LNORO
Section
Special Testing
Specimen Requirements
Collection Instructions

Collect fresh random stool specimen. Add stool specimen to transport vial until liquid reaches fill line. Emulsify specimen thoroughly in transport fluid. If necessary, place a urine bag on the patient to prevent urine contamination.
Acceptable specimens are stool sent in Stool Culture transport (orange cap) (Cary Blair) or Para-Pak Culture and Sensitivity Media. Store and send at room temperature. If an outbreak of norovirus is suspected, specimens should be sent to the Michigan Department of Health & Human Services (MDHHS) for testing. Contact the MDHHS Bureau of Epidemiology at 517-335-8165 to obtain testing approval and necessary instructions prior to sending samples. Note that specimens sent to MDHHS should be stored refrigerated. Mayo specimens should be maintained at room temp.

Normal Volume
Representative portion of diarrheal stool, 1 gram or 5 mL
Storage Temperature
Mayo is strict ambient, MDHHS is refrigerated.
Additional Information

Test sent to Mayo Medical Laboratories. If an outbreak of norovirus is suspected, specimens should be sent to the Michigan Department of Health & Human Services (MDHHS) for testing. Contact the MDHHS Bureau of Epidemiology at 517-335-8165 to obtain testing approval and necessary instructions prior to sending samples.

Billing
CPT Code
87798 x2
Fee Code
AA428 x2
LOINC
54905-5, 54906-3
NY State Approved
No