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Test Code HCVG Hepatitis C Virus (HCV) Genotype

Important Note

Genotype determination requires a minimum viral load to be successful.

Minimum HCV viral load > 2,000 IU/ml.

NUH Laboratory strongly recommends ordering viral load (VL) testing (Test code 1033017 HCVP) together with genotype determination.
If viral load is below the acceptable threshold, genotype testing will not be performed, and the test will be cancelled with refund.

If genotype determination is ordered without a concurrent viral load, NUH recommends that a documented viral load within the preceding 14 days is provided with the test order.

In the absence of a concurrent viral load, testing will proceed at the requester’s risk.

If genotype testing fails due to insufficient viral load, the result will be reported as unsuccessful, no reflex viral load testing will be performed.

Laboratory Code

LAB915

Specimen Requirements

Preferred:
Submit only one of the following:
Specimen Type: Whole Blood
Container/Tube: Lavender Top (EDTA)
Specimen Volume: 3.0 mL x 2 tubes

 

Specimen Type: Whole Blood

Container/Tube: Yellow/Red Top (Plain)

Specimen Volume: 5.0 mL

 

Acceptable
Specimen Type: Serum/Plasma
Container/Tube: Sterile container
Specimen Volume: 2.0 mL

Specimen Stability

Whole Blood (EDTA/plain) 72 hours, ambient/refrigerated
Serum/Plasma 7 days, refrigerated

Methodology

Real-time PCR

Days and Times Performed

TAT 18 days

Specimen Condition

Whole Blood: Frozen or hemolysis Reject 

Reference Interval

An interpretative report will be provided.

Testing Laboratory

National University Hospital
Molecular Diagnosis Centre, 67724384

Useful For

Intended for use in selecting individuals with chronic HCV infection for antiviral therapy and in determining the duration of therapy regimes.

Service Code

1033018

LOINC Code Information

32286-7

Update

Last updated 06/02/2026