Skip to content

Anti-HCV IgG Immunoassay (Serum)

Published: August 9, 2026Updated: August 16, 2026

This test measures antibodies to the hepatitis C virus (HCV) in your blood, helping determine if you’ve ever been exposed to the virus.

Quick summary

["Helps detect past or current hepatitis C infection."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
51824-1
Short code
HCV IgM Ser IA-aCnc
Synonyms
HCV IgM Ser IA-aCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ia
CPT
82784
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

Why This Test Matters

Hepatitis C is a blood-borne virus that can cause liver damage over time. Detecting antibodies to HCV is the first step in identifying exposure, even if you’re not currently infected. This test is often used as a screening tool before further testing (like viral load or genotype testing) to confirm active infection.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your arm to draw blood. It usually takes about 15 minutes. If you’re pregnant, have a bleeding disorder, or take blood thinners, let your healthcare provider know before the test.

What the Test Results Mean

A positive result means your body has produced antibodies against HCV, suggesting past or possible current infection. A negative result means no detectable antibodies were found at this time. Results don’t always show infection immediately after exposure, so follow-up testing may be needed.

Common Reasons for This Test

Your doctor 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 HCV. It’s also used as part of routine screening in certain settings (e.g., healthcare workers, dialysis patients).

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

HCV Antibody Test

Frequently asked questions

How long does it take to get results from this test?
Results are typically available within 24 to 48 hours, but timing may vary depending on your lab’s processes. Follow-up instructions will be provided by your healthcare provider.
Can I still get hepatitis C even if my antibody test is negative?
Yes, it’s possible. Antibody tests detect past exposure, but not always current infection. If you have risk factors, your doctor may recommend additional testing (like viral load) to check for active HCV.
What should I do if my test is positive?
If your test is positive, your doctor will likely order additional tests to confirm infection and determine your HCV status. Treatment options (like antiviral medications) may be recommended to manage the virus and protect your liver.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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 16, 2026. · Read our editorial policy