Hepatitis A Immunization Blood Test

What is Immunization to Hepatitis A?

Hepatitis A immunization is a preventive vaccine that protects against Hepatitis A virus (HAV), a contagious liver infection transmitted through contaminated food and water. The vaccine stimulates the immune system to produce protective antibodies without causing actual infection. The Hepatitis A Antibody, Total test is the most important test to confirm immunity from vaccination or previous infection.

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What causes Hepatitis A immunity?

Hepatitis A immunity is caused by either receiving the Hepatitis A vaccine or recovering from a previous Hepatitis A virus infection. When you get vaccinated, the vaccine contains inactivated virus particles that trigger your immune system to produce protective antibodies without making you sick. These antibodies remain in your bloodstream and provide long-lasting protection against future Hepatitis A infections, typically lasting 20 years or more after completing the two-dose vaccine series.

What is the best test for Hepatitis A immunity?

The Hepatitis A Antibody, Total test is the most important test for confirming Hepatitis A immunity because it detects all protective antibodies your body has produced in response to vaccination or previous infection. This single blood test measures total anti-HAV antibodies in your system, providing definitive proof that you are protected against Hepatitis A virus. The test is particularly valuable when you cannot locate your immunization records, need proof of immunity for travel to endemic areas, work in healthcare settings, or simply want to confirm your vaccination was effective.

When should I get tested for Hepatitis A immunity?

You should get tested if you cannot find your vaccination records but think you were vaccinated, are planning international travel to countries with high Hepatitis A rates, work in healthcare or food service industries, have been exposed to someone with Hepatitis A, or need proof of immunity for employment or school requirements. Testing is also recommended before getting revaccinated to avoid unnecessary shots if you are already immune from a previous vaccine or infection.

What are the symptoms of Hepatitis A infection?
Hepatitis A infection causes fatigue, sudden nausea and vomiting, abdominal pain especially near your liver on the right side, dark-colored urine, clay-colored bowel movements, joint pain, and yellowing of the skin and eyes known as jaundice. Many people, especially young children, may have no symptoms at all but can still spread the virus to others. Symptoms typically appear 2 to 6 weeks after exposure to the virus and can last from a few weeks to several months, though most people recover completely without lasting liver damage.
Who is at risk for Hepatitis A?
People at higher risk include international travelers visiting countries with poor sanitation, men who have sex with men, people who use recreational drugs whether injected or not, household members or caregivers of infected persons, and food service workers. Those with chronic liver disease, people experiencing homelessness, and anyone with direct contact with someone who has Hepatitis A are also at increased risk. Getting vaccinated is the best protection, and vaccination is routinely recommended for all children at age 1 year and for adults in high-risk categories.
What happens if Hepatitis A is left untreated?
Hepatitis A typically resolves on its own without specific treatment, but the infection can cause severe illness lasting several months with debilitating fatigue, inability to work, and significant weight loss. In rare cases, particularly in people over age 50 or those with pre-existing liver disease, Hepatitis A can cause acute liver failure requiring hospitalization and potentially liver transplantation. Unlike Hepatitis B and C, Hepatitis A does not cause chronic infection, but the acute illness can be serious enough to require intensive medical care, making vaccination the far better option than risking infection.
Can Hepatitis A immunity be confirmed with a blood test?
Yes, the Hepatitis A Antibody, Total blood test definitively confirms immunity by detecting protective antibodies in your bloodstream. A positive result means you are immune and protected against future Hepatitis A infections, whether your immunity came from vaccination or past infection. This single blood test eliminates the guesswork when vaccination records are missing or unclear, and results are typically available within a few days, providing you with documented proof of immunity for travel, employment, or personal peace of mind.
How is Hepatitis A prevented?
The Hepatitis A vaccine is the most effective prevention method, providing long-lasting immunity with a two-dose series given 6 to 12 months apart. Good hygiene practices including thorough handwashing after using the bathroom and before preparing food, avoiding potentially contaminated water and food when traveling internationally, and avoiding sharing food, drinks, or eating utensils with infected persons also help prevent transmission. The vaccine is safe, highly effective with over 95% protection after the complete series, and recommended for all children starting at age 1 and adults at increased risk.
How is Hepatitis A infection treated?
There is no specific antiviral treatment for Hepatitis A, as the infection is self-limiting and your immune system clears the virus naturally over time. Treatment focuses on supportive care including rest, managing nausea with anti-nausea medications, staying well-hydrated with fluids, avoiding alcohol and medications that stress the liver, and eating small frequent meals if appetite is poor. Most people recover completely within a few weeks to months, and once recovered, you have lifelong immunity and cannot get Hepatitis A again.
What can I do at home if I have Hepatitis A?
If you have Hepatitis A, get plenty of rest as fatigue is one of the most persistent symptoms, eat small frequent meals to combat nausea and maintain nutrition, drink plenty of water and clear fluids to stay hydrated, and completely avoid alcohol which can further damage your already stressed liver. Practice careful hand hygiene by washing hands thoroughly with soap and warm water after using the bathroom to prevent spreading the virus to household members. Most importantly, avoid preparing food for others for at least two weeks after symptoms start, and follow up regularly with your healthcare provider to monitor your liver function until you fully recover.
How’s this work?
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Long story short:
  1. In the test options, use the filters or search box to narrow your choices and find the test you want.
  2. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
  3. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
  4. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
  5. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
  6. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
  7. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!
  8. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.
How do I know which test to get?
In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option.

Just text or call us at 754-799-7833, email us at support@privatemdlabs.com, and we'll gladly help you. We've got your back and reply quickly.
Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?
Absolutely! We totally understand that errors can happen. No worries, we're here to help you.

Just reach out to us via text at 754-799-7833 or shoot us an email at support@privatemdlabs.com. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you.

There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out.

Our lab requires an address to be listed to generate an order.
Do you accept health insurance?
Only HSA & FSA is accepted.

Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts.

This policy applies to all insurance companies, including federal health insurance programs like Medicare.

If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com.
Can I cancel my order?
Yes.

We get it – sometimes your needs change.

As long as your samples haven’t been collected yet, we’re happy to help you cancel your order.

If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com.

You can read more about our cancellation policy here.
How can I find a lab location near me?
During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp).

Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym.

If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.
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Hepatitis A Antibody, Total
What's included
Fast & easy, results by email & SMS
No need to visit a doctor
Private & confidential
No insurance needed
Results explained
No extra fees paid at the lab

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