HCVG - Specimen: Hepatitis C Virus Genotype, Serum

Test Catalog

Test Name

Test ID: HCVG    
Hepatitis C Virus Genotype, Serum

Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.

The following algorithms are available in Special Instructions:

-Testing Algorithm for the Screening and Diagnosis of Hepatitis C

-Chronic Hepatitis C Treatment and Monitoring Algorithm: Interferon-Free Combination Therapy

Specimen Type Describes the specimen type needed for testing

Serum SST

Shipping Instructions

Ship specimen frozen on dry ice only. If shipment will be delayed for more than 3 days, freeze serum at -20 degrees C or colder (up to 42 days) until shipment on dry ice.

Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

Collection Container/Tube: Serum gel

Submission Container/Tube: Plastic vial

Specimen Volume: 5 mL

Collection Instructions:

1. Spin down and separate serum from cells within 6 hours of collection.

2. Freeze serum immediately.

Additional Information: Specimens should contain a recommended minimum HCV viral load of 500 IU/mL.


If not ordering electronically, complete, print, and send a General Request Form (T239) with the specimen (http://www.mayomedicallaboratories.com/it-mmfiles/general-request-form.pdf).

Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.

1.5 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected


Mild OK; Gross OK


Mild OK; Gross OK




Heparinized specimen, red-top tube, or plasma

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.

Specimen TypeTemperatureTime
Serum SSTFrozen (preferred)42 days
 Refrigerated 72 hours