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Hepatitis A Virus Tests: About Your Child's Tests

What are hepatitis A tests?

Hepatitis A virus tests are blood tests that check for a substance (antibodies) in your child's blood. They show whether your child has hepatitis A now or had it in the past. The tests also can show if your child is protected from getting the disease.

Why are these tests done?

Your child may need these tests if:

  • They have symptoms of hepatitis.
  • They may have been exposed to the hepatitis A virus. Children have a greater chance of being exposed to the virus if:
    • They have been to a country where the disease is common.
    • They have not been vaccinated for hepatitis A.
    • They live with someone who has the disease.
  • Your child had other tests that show that they have liver problems.
  • You or your doctor wants to know if your child is protected from getting the disease.

How do you prepare for the tests?

You don't need to do anything before your child has these tests.

How is the test done?

A health professional uses a needle to take a blood sample, usually from the arm.

What happens after the tests?

Your child will probably be able to go home right away. Talk to your healthcare provider or an infectious disease specialist if your child's test is positive.

Follow-up care is a key part of your child's treatment and safety. Be sure to make and go to all appointments, and call your doctor or nurse advice line (811 in most provinces and territories) if your child is having problems. Ask your doctor when you can expect to have your child's test results.

Where can you learn more?

Go to

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