When HBsAg is positive after exposure?

When HBsAg is positive after exposure?

HBsAg will be detected in an infected person’s blood an average of 4 weeks (range: 1–9 weeks) after exposure to the virus.

What is HBsAg positive?

HBsAg (Hepatitis B surface antigen) – A “positive” or “reactive” HBsAg test result means that the person is infected with hepatitis B. This test can detect the actual presence of the hepatitis B virus (called the “surface antigen”) in your blood.

What happens when you are exposed to hepatitis B?

Having a chronic HBV infection can lead to serious complications, such as: Scarring of the liver (cirrhosis). The inflammation associated with a hepatitis B infection can lead to extensive liver scarring (cirrhosis), which may impair the liver’s ability to function. Liver cancer.

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Is HBsAg curable?

A vaccine can prevent hepatitis B, but there’s no cure if you have the condition. If you’re infected, taking certain precautions can help prevent spreading the virus to others.

What happens if you are exposed to hepatitis B surface antigen-Positive (HBsAg)?

If the source of exposure is known to be hepatitis B surface antigen-positive (HBsAg), the healthcare provider will take the following steps based upon your vaccination status: Source of exposure is known to be HBsAg positive and individual is unvaccinated – HBIG and hepatitis B vaccine are given as soon as possible within a 24 hour window.

What does HBsAg mean in blood work?

Hepatitis B surface antigen (HBsAg): A protein on the surface of hepatitis B virus; it can be detected in high levels in serum during acute or chronic hepatitis B virus infection. The presence of HBsAg indicates that the person is infectious.

What is the difference between HBC and anti HBs?

Hepatitis B surface antibody (anti-HBs): The presence of anti-HBs is generally interpreted as indicating recovery and immunity from hepatitis B virus infection. Anti-HBs also develops in a person who has been successfully vaccinated against hepatitis B. Total hepatitis B core antibody (anti-HBc):

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What serologic tests are needed to diagnose hepatitis B (HB)?

Three different serologic tests are needed (hepatitis B surface antigen [HBsAg], hepatitis B surface antibody [anti-HBs], and total hepatitis B core antibody [anti-HBc]) to determine whether a patient