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Hepatitis B s (Surface) Antigen

450
4.5
NABL, CAP, ISO
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Overview
Interpretations
FAQ's
Hepatitis B s (Surface) Antigen

Overview of Hepatitis B s (Surface) Antigen

What is Hepatitis B s (Surface) Antigen?

Hepatitis B Surface Antigen (HBsAg), also known as Australia antigen is present on the surface of the Hepatitis B virus (HBV). This test detects the presence of Hepatitis B Surface Antigen (HBsAg) in the blood.

Sample Type

The sample type collected for Hepatitis B s (Surface) Antigen is: Blood

Preparation for Hepatitis B s (Surface) Antigen

  • No special preparation required

Why Get Tested for Hepatitis B s (Surface) Antigen?

  • To detect Hepatitis B virus infection in patients having symptoms suggestive of Hepatitis

  • To screen for Hepatitis B infection following accidental exposure to HBV e.g. in healthcare workers. Repeat testing is recommended after 6 weeks post exposure

  • To screen for Hepatitis B infection in individuals who are at risk of acquiring infection like IV drug users, sex workers, hemodialysis patients, prisoners etc.

  • To screen for Hepatitis B infection in pregnancy to prevent transmission of infection from mother to child



Understand more about Hepatitis B s (Surface) Antigen

Hepatitis B virus is one of five main hepatitis viruses, referred to as types A, B, C, D and E and is the causative agent of Hepatitis B (infection in the liver). Hepatitis B Surface Antigen (HBsAg) is present on the surface of the Hepatitis B virus (HBV). HBsAg is present in the blood of patients with viral hepatitis B (with or without clinical symptoms).

HBsAg is the first marker appearing in the blood at 6 to 16 weeks following exposure to HBV. In most cases after an acute infection, this virus clears up on its own in 1 to 2 months after the onset of symptoms. but in some people, the virus does not go away and results in chronic infection which over the years may lead to liver damage (scarring or cirrhosis) or liver cancer. Persistence of HBsAg for more than 6 months in duration indicates the development of either a chronic carrier state or chronic HBV infection.



What Results of Hepatitis B s (Surface) Antigen mean?

Interpretations

A "Reactive" or "Positive" HBsAg test result means that the person is infected with Hepatitis B virus. If a person tests “positive,” then further testing is required to determine if this is a new “acute” infection or a “chronic” Hepatitis B infection or chronic HBV carrier state.

A "Non-reactive" or "Negative" HBsAg test result means that the person is not infected with Hepatitis B virus.



Patient Concerns about Hepatitis B s (Surface) Antigen

Frequently Asked Questions about Hepatitis B s (Surface) Antigen

Q. How is this test performed?
This test is performed on a blood sample. A syringe with a fine needle attached is used to withdraw blood sample from a blood vessel in your arm generally from the inner side of the elbow area. The doctor, nurse or the phlebotomist will tie an elastic band around your arm which will help the blood vessels to swell with blood and hence makes it easier to withdraw blood. You may be asked to tightly clench your fist. Once the veins are clearly visible, the area is cleaned with an antiseptic solution and then the needle is inserted into the blood vessel to collect the sample. You may feel a tiny pinprick during the procedure. Blood sample once collected is then sent to the laboratory.
Q. Is there any risk associated with this test?
There is no risk associated with the test. However, as this test involves a needle prick to withdraw the blood sample, rarely, a patient may experience increased bleeding, hematoma (blood collection under the skin) formation, bruising or infection at the site of needle prick.
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Provided By

NABL

CAP

ISO

Established in 1995, Lifecare is the country's premier full-service diagnostic center with laboratory, providing expertise in imaging and digital pathology services. Our integrated diagnostic services help doctors personalize patient care to optimally treat disease and maintain health and wellness. We are committed to providing only the highest level of testing quality and service and working with you to provide unique solutions to your most challenging needs. A highly skilled team of medical professionals including physicians, scientists, medical technologists, medical technicians, lab assistants, biologists, chemists, microbiologists, geneticists, and other specialists work collaboratively. The department receives specimens for testing from patients and collection centers and is a reference laboratory for other clinics and hospitals both nationally and internationally. Lifecare's mission is to support the local delivery of laboratory services through the provision of exceptional reference laboratory services and by providing support services that facilitate and augment community integration efforts. We ensure Quality control programs that exceed industry guidelines for every patient sample. Proactive internal quality control team consisting of pathologists and laboratory personnel ensuring consistency and accuracy of specimen processing and diagnosis Our staff recognizes that specimens are patients, not just accession numbers in our lab. They are dedicated to combining the newest technologies, expertise, and quality in every sample they process.

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