Hepatitis C Qualitative PCR, Tissue
General Information
Lab Name
Hepatitis C Qualitative PCR, Tissue
Lab Code
HCVQLT
Epic Name
Hepatitis C Qualitative PCR, Tissue
Description
The modified Hologic Aptima HCV Quant Dx assay is a nucleic acid amplification test that uses real-time Transcription-Mediated Amplification (TMA) technology to detect HCV RNA. It targets a conserved region of the 5' Untranslated Region (UTR) of the HCV genome, enabling detection of genotypes 1, 2, 3, 4, 5, and 6. This assay is standardized against the 2nd WHO International Standard for Hepatitis C Virus (NIBSC code: 96/798).
The limit of detection, defined as the minimum virus level that yields a positive result in 95% of replicates, has not been established for several specimen types, including tissue biopsy, paraffin-embedded tissue, bone marrow, swabs, or cellular fluids.
This test was developed and its performance characteristics determined by the University of Washington Department of Laboratory Medicine and Pathology. It has not been cleared or approved by the US Food and Drug Administration.
For Blood samples, refer to Hepatitis C RNA, Quantitative [HCVQNT].
For HCV genotyping, refer to Hepatitis C RNA Genotyping by PCR [HCPCGT].
Synonyms
HCV RNA Qualitative, Hepatitis C by PCR, PCR-Hepatitis C
Components
| Code | Name |
|---|---|
| HCVQLS | Hepatitis C Qualitative PCR Specimen Type |
| HCVQLR | Hepatitis C Qualitative PCR Result |
| HCVQLI | Hepatitis C Qualitative PCR Interpretation |
Interpretation
Method
Real-time Polymerase Chain Reaction.
Reference Range
See individual components
Ordering & Collection
Specimen Type
Collection
Tissue Biopsy: Pea-sized specimen in a sterile tube or universal transport media.
Bone Marrow: 5 mL of blood in an EDTA (lavender top) tube; no heparin aspirate in the syringe.
Swab: In a sterile tube or universal transport media (UTM).
Cellular Fluid: 1 mL in a sterile tube.
Unacceptable Samples: Buffy coat collected with a heparin syringe; paraffin samples.
Handling Instructions
Bone Marrow: 5 mL of bone marrow in an EDTA (lavender top) tube should be sent to the laboratory at room temperature within 24 hours of collection.
Quantity
requested: See Collection
minimum: 0.5 mL
Processing
Tissue Biopsy: Freeze at -20°C or colder. Ship on dry ice. The sample may be stored at 2 to 8°C (ice pack) within 48 hours of collection. Do not freeze and thaw.
Bone Marrow: Ship at room temperature within 24 hours of collection.
Swabs: Freeze at -20°C or colder. Ship on dry ice. If a freezer and/or dry ice is not available, ship immediately at 2 to 8°C (ice pack). The sample may be stored at 2 to 8°C (ice pack) for up to 48 hours after collection. Samples stored at 2 to 8°C for more than 48 hours will be rejected. Do not freeze and thaw.
Cellular Fluid: Freeze at -20°C or colder. Ship frozen samples on dry ice. The sample may be stored at 2 to 8°C (ice pack) for up to 48 hours from collection. Do not freeze and thaw.
Outside Laboratories:
Buffy Coat: Separate the buffy coat from bone marrow within 24 hours of collection. Freeze at -20°C or colder.
Tissue/Cellular Fluid/Swab: Ship samples on dry ice. If a freezer and/or dry ice is not available, ship immediately at 2 to 8°C (ice pack). Shipment time must not exceed 48 hours from collection. The sample may be stored at 2 to 8°C (ice pack) for up to 48 hours after collection. Samples stored at 2 to 8°C for more than 48 hours will be rejected. Do not freeze and thaw.
Performance
LIS Dept Code
Virology, Eastlake (EVIR)
Performing Location(s)
| Other |
Virology, Molecular
206-685-6656 Virology Laboratory, Ste 320 |
|---|
Frequency
Wednesday. Results following Thursday.
Available STAT?
No