Hepatitis B Infection Blood Test

What is Hepatitis B infection?

Hepatitis B infection is a viral liver disease that can become chronic and lead to serious liver damage. It is caused by the Hepatitis B virus (HBV), which spreads through contact with infected blood or body fluids. The Hepatitis Be Antigen test is the most important test for assessing active infection and viral replication levels.

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What causes Hepatitis B infection?

Hepatitis B infection is caused by the Hepatitis B virus (HBV), which spreads through contact with infected blood, semen, or other body fluids. Common transmission routes include sexual contact with an infected person, sharing needles or syringes, needle-stick injuries in healthcare settings, and from mother to baby during childbirth. The virus can survive outside the body for up to seven days and still cause infection if it enters the body of someone who is not vaccinated.

What is the best test for Hepatitis B infection?

The Hepatitis Be Antigen test is the most important test for assessing active Hepatitis B infection because it detects HBeAg in the blood, which indicates active viral replication and high infectivity levels. A positive result means the virus is actively multiplying in your body and you are highly contagious to others. This test is essential for healthcare providers to determine appropriate treatment strategies, monitor disease progression, and implement necessary precautions to prevent transmission. Additional tests like Hepatitis B surface antigen and antibody tests may be used alongside this to provide a complete picture of your infection status.

When should I get tested for Hepatitis B infection?

You should get tested if you have had unprotected sex with someone who has Hepatitis B, shared needles or drug equipment, experienced a needle-stick injury, or if you are pregnant or planning to become pregnant. Testing is also recommended if you were born in a region where Hepatitis B is common, live with someone who has the infection, have unexplained liver problems or elevated liver enzymes, or work in healthcare settings with potential blood exposure. Early detection is crucial because many people with Hepatitis B have no symptoms in the early stages.

What are the symptoms of Hepatitis B infection?
Symptoms of Hepatitis B infection include fatigue, abdominal pain particularly in the upper right side, loss of appetite, nausea and vomiting, dark-colored urine, and jaundice which causes yellowing of the skin and eyes. Some people also experience joint pain, fever, and clay-colored stools. However, many people with Hepatitis B have no symptoms at all, especially in the early stages or with chronic infection, which is why blood testing is essential for diagnosis even if you feel perfectly healthy.
Who is at risk for Hepatitis B infection?
People at higher risk for Hepatitis B include healthcare workers exposed to blood, individuals who have multiple sexual partners or a partner with Hepatitis B, people who inject drugs and share needles, men who have sex with men, and individuals receiving dialysis treatment. Babies born to infected mothers, people living in or traveling to regions with high Hepatitis B rates such as Asia and Africa, and individuals with HIV infection are also at increased risk. Additionally, people who share personal items like razors or toothbrushes with someone who has Hepatitis B may be at risk.
What happens if Hepatitis B infection is left untreated?
Untreated Hepatitis B infection can lead to serious and life-threatening complications including chronic liver disease, cirrhosis which is permanent scarring of the liver, liver failure, and liver cancer. Chronic Hepatitis B significantly increases your risk of developing hepatocellular carcinoma, a type of liver cancer. The infection can also cause kidney disease and blood vessel inflammation. Additionally, people with untreated Hepatitis B can unknowingly transmit the virus to others, continuing the cycle of infection. Early detection and appropriate medical management can prevent these severe outcomes.
Can Hepatitis B infection be diagnosed with a blood test?
Yes, Hepatitis B infection is diagnosed primarily through blood tests that detect viral antigens, antibodies, and assess viral activity levels. The Hepatitis Be Antigen test specifically identifies active viral replication and high infectivity, while other blood tests can detect the presence of the virus itself, determine if you have immunity from vaccination or past infection, and evaluate liver function. Blood testing is the gold standard for Hepatitis B diagnosis because the infection often has no visible symptoms, and these tests provide definitive evidence of current or past infection status.
How is Hepatitis B infection treated?
Acute Hepatitis B infection often resolves on its own with supportive care including rest, adequate hydration, and nutrition, though your doctor will monitor your condition closely. Chronic Hepatitis B infection requires antiviral medications such as tenofovir, entecavir, or interferon to suppress viral replication and prevent liver damage. Treatment decisions depend on your viral load, liver enzyme levels, and extent of liver damage. Regular monitoring through blood tests and imaging is essential to assess treatment effectiveness and detect any liver complications early. Not everyone with chronic Hepatitis B needs immediate treatment, but all require ongoing medical supervision.
How can I prevent Hepatitis B infection?
The Hepatitis B vaccine is the most effective prevention method and is recommended for all infants, children, and at-risk adults. Additional prevention strategies include practicing safe sex by using condoms, never sharing needles or drug equipment, avoiding sharing personal items like razors or toothbrushes, and ensuring proper sterilization of equipment for tattoos or body piercings. Healthcare workers should follow standard precautions and use personal protective equipment when handling blood or body fluids. If you have been exposed to Hepatitis B, post-exposure prophylaxis with the vaccine and immunoglobulin within 24 hours can prevent infection.
What can I do at home to support liver health with Hepatitis B?
If you have Hepatitis B, you can support your liver health by completely avoiding alcohol which can accelerate liver damage, maintaining a healthy weight through balanced nutrition and regular exercise, and avoiding medications or supplements that can harm the liver without consulting your doctor first. Eat a diet rich in fruits, vegetables, whole grains, and lean proteins while limiting processed foods and saturated fats. Get adequate rest to help your body fight the infection, and avoid exposure to toxic chemicals and substances. Always inform healthcare providers about your Hepatitis B status before starting any new medications or treatments.
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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?
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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.

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If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com.
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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.
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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 Be Antigen
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Private & confidential
No insurance needed
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No extra fees paid at the lab

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