Hepatitis C Virus Antibody, Qualitative (Serum/Plasma)
This test checks for antibodies to the hepatitis C virus (HCV) in your blood. Antibodies are your body’s immune response to a virus, indicating past or potential exposure.
["Determines if you’ve been exposed to hepatitis C virus, even if you don’t yet have symptoms."]
Key facts at a glance
- LOINC
- 24011-9
- Short code
- HCV Ab Patrn Ser IB-Imp
- Synonyms
- HCV Ab Patrn Ser IB-Imp
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 0
- Ref high
- 17
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- ib
- CPT
- 86803
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What This Test Measures
The test detects the presence of antibodies specific to the hepatitis C virus. These antibodies develop after your body encounters the virus, which can happen months or years after infection. This test is not used to diagnose active hepatitis C infection but helps identify if you’ve been exposed.
How the Test Works
Your blood sample is tested using an immunoassay method to identify HCV antibodies. If antibodies are found, it suggests past or possible current exposure, though further testing may be needed to confirm active infection.
Why It’s Done
Doctors may order this test if you have risk factors for hepatitis C, such as a history of blood transfusions before 1992, needle exposure, or living with someone who has hepatitis C. It’s also used as part of screening for those with unexplained liver concerns.
What to Expect Before the Test
No special preparation is needed. You may have a small needle inserted into your arm to draw blood. The process takes about 5 minutes, and you can resume normal activities afterward.
Reference range
NCBI: NSE 0-17 ng/mLN/A
No special preparation required. Some tests may require follow-up confirmatory testing.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
HCV Antibody Test
Frequently asked questions
Positive results indicate your immune system has recognized hepatitis C antibodies, meaning you may have been exposed to the virus at some point. This does not confirm active infection but signals a need for further evaluation, such as a viral load test, to check for current hepatitis C.
Negative results mean your blood sample did not detect HCV antibodies, suggesting you likely have not been exposed to the virus in the past. However, exposure could have occurred months or years earlier, so repeated testing may be advised if you have risk factors.
How long will I need to wait for results? Results are typically available within a few days to a week, depending on your lab. Follow-up instructions will be provided by your healthcare provider.
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 17, 2026. · Read our editorial policy