Laboratory Fee Schedule
Procedure: MZZ0450A
CPT: 87798
| Synonym(s): |
Norwalk-like virus, stool
|
| Requisition Form |
G-2B
|
| Test Description |
PCR test designed to detect the presence of RNA from human noroviruses and the Norwalk-like virus genera
|
| Pre-Approval Needed |
N/A
|
| Supplemental Information Required |
N/A
|
| Supplemental Form(s) |
N/A
|
| Performed on Specimens from (sources) |
Human
|
| Sample/Specimen Type for Testing |
Stool (raw or in Cary-Blair transport medium)
|
| Minimum Volume/Size Required |
200µL to 400µL
|
| Storage/Preservation Prior to Shipping |
-
Raw stool should be shipped between 2°C–8°C on frozen ice packs, or frozen on dry ice.
-
Ship raw stool in a clean, dry, sealable container.
-
Stool in Cary-Blair medium may be shipped between 2°C–8°C or ambient.
-
Do not freeze Cary-Blair medium.
|
| Transport Medium |
N/A
|
| Specimen Labeling |
-
At least two patient-specific identifiers required on specimen (e.g., patient full name, date of birth, medical record number).
-
Three unique patient identifiers are preferred.
-
Patient identifiers on specimen label must exactly match identifiers on submission form. (e.g., abbreviated name on label and full name on form is not acceptable.)
-
Additional DSHS Laboratory specimen labeling guidelines available online here.
|
| Shipping and Specimen Handling Requirements |
-
Raw stool: Ship refrigerated at 2°C–8°C on frozen cold packs or frozen on dry ice for overnight delivery.
-
Cary-Blair stool specimens may be shipped cold on frozen cold packs, or at ambient temperatures.
-
Do not freeze Cary-Blair stool specimens.
-
Use multiple frozen cold packs when shipping cold.
-
Ship according to Dangerous Goods Regulations, IATA, and/or CFR 49.
-
Category B Biological Substance, UN3373 shipping requirements apply.
-
Handle as an infectious agent, triple pack and use universal precautions.
-
Submitters are responsible for packaging and shipping specimens according to regulatory requirements.
-
Additional DSHS Laboratory specimen shipping guidelines online here.
|
| Method |
Real-time PCR
|
| Turn-around Time |
48 business hours from receipt of specimen.
|
| Interferences/Limitations |
Heme from hemoglobin interferes with PCR in this assay. From hemoglobin interferes with PCR in this assay.
|
| Common Causes for Rejection |
-
Insufficient specimen volume
-
Mismatch(es) between patient identifiers on G-2B submission form and specimen label
-
Bloody stool
-
Dried stool
-
Stored in transport media or preservatives.
-
Improper storage conditions.
-
Raw stool specimens received at ambient temperature.
-
Cary-Blair specimens received frozen.
-
Failure to meet submission/shipping guidelines.
-
Missing/incomplete/illegible submission form.
|
| Additional Information |
PCR test may be paired with bacteriological culture.
|