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Blood test

Hepatitis C antibody test

Hepatitis C antibody test: what it measures, why a doctor orders it, how to prepare, and what a high or low result can mean - with private and NHS access routes in the UK.

Key facts

At a glance

  • What it measures: antibodies to the hepatitis C virus, showing that you have been exposed at some point.

  • Why it is ordered: to screen people with risk factors or unexplained abnormal liver tests, since chronic infection is usually silent for years.

  • No fasting or special preparation is needed for this test on its own.

  • Reference ranges: a positive antibody is followed by a PCR test for viral RNA, which shows whether infection is still active. Every laboratory publishes its own interval, so the range printed on your report is the one that applies to you.

  • A raised result or positive antibody means past exposure - and if the follow-on PCR is positive, modern tablets cure well over 95 percent of cases in weeks. A low result or negative result excludes infection outside the recent window period.

  • Results usually take one to three working days, depending on the laboratory.

The full picture

What this test tells you, and how to get it

The hepatitis C antibody test measures antibodies to the hepatitis C virus, showing that you have been exposed at some point. Doctors most often request it to screen people with risk factors or unexplained abnormal liver tests, since chronic infection is usually silent for years. No fasting or special preparation is needed for this test on its own. A positive antibody is followed by a PCR test for viral RNA, which shows whether infection is still active, and reference intervals genuinely differ between laboratories, so no single number should be treated as a universal cut-off - your result is always read against the range printed on your own report. Broadly, a raised result or positive antibody means past exposure - and if the follow-on PCR is positive, modern tablets cure well over 95 percent of cases in weeks, while a low result or negative result excludes infection outside the recent window period, and either finding is interpreted alongside your symptoms, medication and other results rather than in isolation. Results usually take one to three working days, depending on the laboratory.

In the UK there are two routes to this test. Your NHS GP can arrange it free of charge when it is clinically indicated, though getting the appointment, the blood draw and the follow-up discussion can add days to weeks depending on local demand. Privately, the hepatitis C antibody test can usually be booked within days - through a private GP, a walk-in phlebotomy clinic or a self-request home-testing service - and NHS testing is free through GPs, sexual health services and drug services. A private result still deserves a clinician's interpretation: an isolated number without context is where most confusion about blood tests begins.

A quiet reminder

This guide is for information, not medical advice.

Your own clinician knows your history and can tell you which parts apply to you. Reference ranges vary between laboratories - always read your result against the interval printed on your own report. Next review of this page: 2027-09-27.

Frequently asked

Common questions about Hepatitis C antibody test.

Quick, plain-English answers to what people ask us most.

  • What is a hepatitis C antibody test?

    This blood test checks for antibodies your immune system produces in response to hepatitis C virus infection. A positive result means you've been exposed to the virus at some point, and further testing is needed to check whether the infection is still active.

  • Why would a doctor order this test?

    It's used to investigate unexplained liver problems, as part of routine screening for people with certain risk factors, before some medical procedures, or if there's been a potential exposure to the virus. It's also sometimes requested as part of general health screening.

  • Do I need to prepare for this test?

    No special preparation, such as fasting, is needed for this test. Simply attend your appointment as normal.

  • What happens during the test?

    A standard blood sample is taken from a vein in your arm. The process typically takes just a few minutes.

  • Does it hurt or carry any risks?

    There's a brief needle prick and occasional minor bruising, with no other significant risks.

  • How long do results take?

    Results are usually available within a few days, though private clinics can sometimes offer faster turnaround.

  • What do abnormal results mean, and what happens next?

    A positive antibody result means you've been exposed to hepatitis C at some point, but doesn't necessarily mean you're currently infected, since some people clear the virus naturally. Your doctor will arrange a follow-up test, usually looking for the virus's genetic material (RNA), to confirm whether the infection is still active and needs treatment.

  • How much does this test cost privately, and is it available on the NHS?

    It's available on the NHS, often through your GP or sexual health services, sometimes with a wait depending on the reason for testing. Private testing is typically available within days, with results reviewed by a doctor; cost varies by provider.

  • Is this test accurate and reliable?

    The antibody test is a well-established and reliable first step for detecting hepatitis C exposure. It's important to know it can't distinguish between past cleared infection and current active infection on its own, which is why a follow-up RNA test is used to clarify this.

  • How do I book this test privately, and how quickly can I be seen?

    You can book directly with a private clinic, often without a referral, with appointments commonly available within a few days.