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HelpOrder Code HCVSP Hepatitis C Virus (HCV) Antibody Screen Prenatal, Serum
Ordering Guidance
This test is intended for testing either symptomatic or asymptomatic women who are pregnant.
For testing autopsy/cadaver or hemolyzed specimens, order HCCAD / Hepatitis C Virus Antibody Screen for Cadaveric or Hemolyzed Specimens, Asymptomatic, Serum for asymptomatic individuals or HCCDD / Hepatitis C Virus Antibody in Cadaveric or Hemolyzed Specimens, Symptomatic, Serum for symptomatic individuals.
Specimens that are repeatedly reactive by screening tests should be confirmed by a more hepatitis C virus (HCV)-specific test. Order HCVRP / Hepatitis C Virus (HCV) RNA Detection and Quantification by Real-Time Reverse Transcription-PCR (RT-PCR), Prenatal, Serum.
If testing is desired to distinguish between true positivity and biologic false positivity for HCV antibody, then testing may be done with a second HCV antibody assay approved by the Food and Drug Administration for diagnosis of HCV infection that is different from the assay used for initial antibody testing (HCCAD / Hepatitis C Virus Antibody Screen for Cadaveric or Hemolyzed Specimens, Asymptomatic, Serum).
Shipping Instructions
If shipment will be delayed for more than 24 hours, freeze serum at -70° C until shipment and transport on dry ice.
Necessary Information
Date of collection is required.
Specimen Required
Patient Preparation: For 24 hours before specimen collection, patient should not take multivitamins or dietary supplements (eg, hair, skin, and nail supplements) containing biotin (vitamin B7).
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube: Serum gel (red-top tubes are not acceptable)
Submission Container/Tube: Plastic vial
Specimen Volume: 1.3 mL
Collection Instructions:
1. Centrifuge blood collection tube per manufacturer's instructions (eg, centrifuge and aliquot within 2 hours of collection for BD Vacutainer tubes).
2. Aliquot serum into plastic vial.
Useful For
Screening of pregnant women for hepatitis C virus (HCV) infection in primary care settings, with or without risk factors for hepatitis C
This test should not be used as a screening test for hepatitis C in blood or human cells/tissue donors.
This test profile is not useful for detection or diagnosis of acute hepatitis C since HCV antibodies may not be detectable until after 2 months following exposure and HCV RNA testing is not performed on specimens with negative HCV antibody screening test results.
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| HCVRP | HCV RNA Detect/Quant Prenatal, S | Yes | No |
Testing Algorithm
If the hepatitis C virus (HCV) antibody screen is reactive, then HCV RNA testing by reverse transcription polymerase chain reaction will be performed at an additional charge.
For more information, see Hepatitis C: Testing Algorithm for Screening and Diagnosis.
Special Instructions
Method Name
Electrochemiluminescence Immunoassay (ECLIA)
Reporting Name
HCV Ab Scrn Prenatal, SSpecimen Type
Serum SSTSpecimen Minimum Volume
0.9 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum SST | Frozen (preferred) | 84 days | |
| Refrigerated | 6 days |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
Method Description
The Elecsys Anti-HCV (hepatitis C virus) II assay is based on the sandwich immunoassay principle and performed using an electrochemiluminescence immunoassay on the automated cobas e 801 immunochemistry analyzer. HCV-specific antibodies present in the patient’s sample react with biotinylated HCV-specific antigens and a reagent containing HCV-specific antigens labeled with a ruthenium complex to form sandwich complexes. After addition of streptavidin-coated microparticles, these complexes become bound to the solid phase via interaction of biotin and streptavidin. The reaction mixture is aspirated into the measuring cell where the microparticles are magnetically captured onto the surface of the electrode, and unbound substances are then washed away. Voltage is applied to the electrode which induces chemiluminescent emissions that are measured by a photomultiplier. Test result is determined by comparing the electrochemiluminescence signal generated from the patient’s sample to the cutoff index value set from reagent lot-specific assay calibration. (Package insert: Elecsys Anti-HCV II. Roche Diagnostics; v1.0, 03/2023)
Day(s) Performed
Monday through Saturday
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
86803
G0472 (if appropriate for government payers)
87522 Hepatitis C, quantification (if appropriate)
Forms
If not ordering electronically, complete, print, and send 1 of the following with the specimen: