What's this test for?

This test helps if you've already been diagnosed with hepatitis B and need to track how the virus is responding to treatment. It measures the exact amount of hepatitis B surface antigen (HBsAg) in your blood, which helps show whether antiviral therapy is working. This test is not used to diagnose hepatitis B for the first time — it's for people already confirmed positive who need ongoing monitoring.

What happens after I get my results?

Your results will show up in your account with your HBsAg level and an explanation of what that range means. If your levels are low or dropping over time, that's generally a good sign your body is clearing the virus, while levels that stay high or rise may mean you should continue or adjust your current treatment plan. You can download a standard lab report from your account at any time, and the trends feature lets you track your HBsAg levels test after test to see your progress. If a result looks unexpectedly high or you feel unwell, consider seeking medical care right away.

Who should consider this test?

This test is meant for people who have already tested positive for hepatitis B through a qualitative test and are now undergoing or considering antiviral treatment. It's also useful if you and your care routine want objective proof of how well the virus is being controlled over time. It's not the right choice if you've never been diagnosed with hepatitis B — a qualitative screening test comes first.

What symptoms indicate I may need this test?

If you've been previously diagnosed with hepatitis B, signs like ongoing fatigue, yellowing skin or eyes, dark urine, or abdominal discomfort may suggest the virus is still active and worth monitoring. Even without symptoms, if you're on antiviral therapy, periodic monitoring helps confirm treatment is working since hepatitis B activity doesn't always cause noticeable symptoms. This test tracks that activity with a precise number rather than relying on symptoms alone.

When will I get my results?

Results are typically ready within about 7 days of your blood draw. Once processed, they'll be uploaded directly to your secure online account, where you can view and download them at your convenience.

How can I naturally support liver health during hepatitis B monitoring?

Cutting back on alcohol, maintaining a balanced diet low in processed fats, and staying at a healthy weight can all help reduce extra strain on your liver. Regular, moderate exercise and staying hydrated also support overall liver function. These habits won't replace antiviral treatment, but they can help your liver handle the workload while the virus is being managed.

What does a high HBsAg result mean?

A high or rising HBsAg level generally means the hepatitis B virus is still actively replicating in your body. This can mean your current treatment approach needs to be reevaluated or that the infection is still in an active phase. Retesting on a regular schedule helps confirm whether the trend continues, so you can catch changes early.

What does a low or undetectable HBsAg result mean?

A low or undetectable HBsAg level is a positive sign — research shows it's linked to a higher chance of your body clearing the virus long-term. It suggests that treatment, if you're on one, is working well. Repeated low readings over time build more confidence in this trend than a single test result.

How often should I retest?

Retesting frequency depends on your treatment plan and how your levels have trended in the past, but many people monitor every few months while on active antiviral therapy. Consistent, repeated testing over time gives a much clearer picture than a single result, since it shows the direction your levels are heading. The trends feature in your account can help you and your care routine decide on next steps based on that pattern.

What should I do if my results are abnormal?

If your HBsAg level is higher than expected or has increased since your last test, it may be worth revisiting your current antiviral treatment plan and lifestyle habits like alcohol use and diet. Keep monitoring on a regular schedule to see if the trend continues or reverses. If you notice symptoms like severe fatigue, jaundice, or abdominal pain alongside abnormal results, seek medical care promptly.

Getting your blood test with us is easy, private & backed by the power of science.Long story short: In the test options, use the filters or search box to narrow your choices and find the test you want. 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. 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. 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. 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. 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. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy! 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.

When will my lab results be available?

Most test results will be available within 1–3 business days. Once they're ready, we'll send an email and text message to let you know. After your blood draw, just hang tight and don't worry – we'll keep you updated and in the loop! If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com, and we'll gladly help you.

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.

Hepatitis B HBsAg Quantitative - Treatment Monitoring

Getting your blood test with us is easy, private & backed by the power of science.

Long story short:

In the test options, use the filters or search box to narrow your choices and find the test you want.
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.
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.
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.
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.
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.
You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!

754-799-7833

[email protected]