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Choose collection locationSTI & STD · Individual laboratory test
Hepatitis B Surface Antigen (HBsAg)
HBsAg looks for hepatitis B surface antigen in blood. It is one marker used in a broader assessment of hepatitis B infection.
Price for this test on its ownAED 155Test price AED 55
Clinical authorDr Nirupama SabhapathySpecialist Clinical Pathology
- Sample
- Serum
- Laboratory turnaround
- 24 hours
- Collection
- Dubai
- Laboratory
- Intel Lab
Understanding the test
What does Hepatitis B Surface Antigen (HBsAg) measure?
Also called Active Hepatitis B Marker
This antigen can be part of a clinician's hepatitis B assessment or an antenatal testing pathway. It is often requested alongside other hepatitis B markers.
When it may be requested
Looking for current hepatitis B
A reactive surface antigen can indicate infection and usually prompts further testing.
Clarifying the infection pattern
The clinician considers other hepatitis B markers and vaccination timing, because antigen can be detected briefly after a vaccine.
Before your sample
Prepare for collection
SpecimenSerum
Your checklist
No fasting is needed. Mention any recent hepatitis B vaccine dose, potential exposure and prior antigen or antibody findings.
A clinician takes a small sample of blood from a vein. The laboratory uses serum, the liquid separated from the blood after it clots.
Smart Report
Understanding your result
24 hoursLaboratory turnaround
Result guideHepatitis B Surface Antigen (HBsAg)
Reading your result
A reactive result needs appropriate confirmation and context. Antigen alone cannot distinguish a recent infection from one that is longstanding.
What can affect it
- A single reactive HBsAg result does not distinguish acute from chronic infection.
From sample to follow-up
Your testing journey
Laboratory testHepatitis B Surface Antigen (HBsAg)
- Specimen
- Serum
- Turnaround
- 24 hours
Open your laboratory report
Look for Hepatitis B Surface Antigen (HBsAg) in your report. Use the sample type and collection time when comparing it with an earlier report.
Explore Smart Report
Discuss the next step
Take any earlier hepatitis B tests or vaccine dates and ask which companion markers are needed to interpret the antigen result.
Health packages
Packages that include this test
Compare the other tests in each package before choosing.
Clinical expertise
Your laboratory team
Patient questions
Before you book
Does this measure protection after vaccination?
No. HBsAg looks for hepatitis B surface antigen, which can signal current infection. A hepatitis B screening panel also measures surface antibody (anti-HBs) and total core antibody (anti-HBc). Read together, the three results can help distinguish vaccine protection, previous infection and current infection.
Can recent vaccination affect an HBsAg test?
Surface antigen can be detected transiently after hepatitis B vaccination. Give your clinician the vaccine date so they can interpret a reactive result with other markers and follow-up.
Why is HBsAg checked in pregnancy?
Screening during pregnancy can identify people who need further assessment and allows the maternity team to plan protection for the newborn.
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- Samples
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Your next step
Hepatitis B Surface Antigen (HBsAg) test at home.
Sources & further reading
Written by Dr Nirupama Sabhapathy, Specialist Clinical Pathology. Medically reviewed by Dr Joyce Jose, Specialist Clinical Pathology, on .
Catalogue information and AED price checked on 2 November 2026. Clinical suitability, preparation, collection arrangements and turnaround are confirmed for your selected test.