Infectious Hepatitis Blood Test

What is Infectious Hepatitis?

Infectious hepatitis is inflammation of the liver caused by viral infections. It is most commonly caused by hepatitis A virus (HAV), hepatitis B virus (HBV), or hepatitis C virus (HCV). The Complement Component C3c test is the most important blood test for monitoring infectious hepatitis because it measures immune system activation and liver inflammation severity.

RECOMMENDED TEST Complement Component C3c
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What causes infectious hepatitis?

Infectious hepatitis is caused by viral infections that attack the liver, with hepatitis A virus (HAV), hepatitis B virus (HBV), and hepatitis C virus (HCV) being the most common culprits. Hepatitis A spreads through contaminated food or water, while hepatitis B and C transmit through blood, sexual contact, or from mother to baby during childbirth. These viruses trigger an inflammatory response in the liver that can range from mild, self-limiting infection to severe, chronic liver disease depending on the virus type and individual immune response.

What is the best test for infectious hepatitis?

The Complement Component C3c test is the most important blood test for monitoring infectious hepatitis because it measures immune system activation and inflammation severity in the liver. When viral hepatitis causes liver inflammation, C3c levels typically increase as the complement system responds to the infection. This test works alongside viral-specific antibody and antigen tests (like hepatitis A IgM, hepatitis B surface antigen, or hepatitis C antibody) to provide a complete picture of disease activity. Elevated C3c levels help healthcare providers assess how aggressively your immune system is responding to the virus and guide treatment decisions, making it essential for tracking hepatitis progression and recovery.

When should I get tested for infectious hepatitis?

You should get tested if you experience symptoms like yellowing of the skin or eyes (jaundice), persistent fatigue, dark urine, pale stools, abdominal pain in the upper right side, or unexplained nausea and loss of appetite. Testing is also crucial if you have been exposed to someone with hepatitis, traveled to areas with poor sanitation, received a blood transfusion before 1992, share needles, or have multiple sexual partners. Early detection through blood work allows for prompt treatment and helps prevent liver damage and transmission to others.

What are the symptoms of infectious hepatitis?
Infectious hepatitis symptoms include jaundice (yellowing of skin and eyes), fatigue, abdominal pain especially in the upper right side, nausea, vomiting, loss of appetite, dark urine, and pale or clay-colored stools. You might also experience joint pain, fever, and general weakness. Some people, especially those with hepatitis C, may have no symptoms initially but still have active liver inflammation. Symptoms typically appear 2-6 weeks after viral exposure and can range from mild flu-like illness to severe liver dysfunction requiring hospitalization.
Who is at risk for infectious hepatitis?
People at higher risk for infectious hepatitis include healthcare workers exposed to blood, individuals who inject drugs or share needles, those with multiple sexual partners or who have unprotected sex, people living with or caring for someone with hepatitis, travelers to developing countries with poor sanitation, recipients of blood transfusions before 1992, people on long-term dialysis, and babies born to infected mothers. Additionally, men who have sex with men, people with HIV, and those who get tattoos or piercings in unregulated settings face increased risk. Understanding your risk factors helps you take preventive measures and get tested when appropriate.
What happens if infectious hepatitis is left untreated?
Untreated infectious hepatitis can lead to serious complications including chronic liver inflammation, cirrhosis (scarring of the liver), liver failure, and liver cancer. Hepatitis B and C are particularly dangerous because they can become chronic infections, silently damaging the liver for years before symptoms appear. Chronic hepatitis increases your risk of developing portal hypertension, ascites (fluid buildup in the abdomen), bleeding disorders, and hepatic encephalopathy (brain dysfunction due to liver failure). Early detection and monitoring through blood tests can prevent these life-threatening complications and improve long-term outcomes significantly.
Can infectious hepatitis be diagnosed with a blood test?
Yes, infectious hepatitis is diagnosed primarily through blood tests that detect viral antigens, antibodies, and liver inflammation markers. Blood work can identify specific hepatitis viruses (A, B, or C), determine if the infection is acute or chronic, and assess liver function and inflammation severity. Tests like the Complement Component C3c measure immune system activation, while liver function tests check for enzyme elevations that indicate liver damage. These blood tests are highly accurate and provide comprehensive information about the infection status, helping doctors develop appropriate treatment plans without invasive procedures.
How is infectious hepatitis treated?
Treatment for infectious hepatitis depends on the virus type and infection stage. Hepatitis A typically resolves on its own with rest, adequate nutrition, and hydration, though your doctor may recommend supportive care and monitoring through blood tests. Hepatitis B may be treated with antiviral medications like tenofovir or entecavir for chronic cases, while acute infections often clear without treatment. Hepatitis C is now curable with direct-acting antiviral medications taken for 8-12 weeks, with cure rates exceeding 95%. All hepatitis patients should avoid alcohol, certain medications that stress the liver, and should have regular blood work to monitor liver function and inflammation levels.
How can I prevent infectious hepatitis?
You can prevent infectious hepatitis through vaccination (highly effective vaccines exist for hepatitis A and B), practicing good hand hygiene especially before eating, avoiding contaminated food and water when traveling, using condoms during sexual activity, never sharing needles or personal items like razors or toothbrushes, and ensuring tattoos or piercings are done with sterile equipment. Healthcare workers should follow universal precautions when handling blood or bodily fluids. If you are at high risk, talk to your doctor about vaccination and regular screening blood tests to catch any infection early before it causes serious liver damage.
What can I do at home for infectious hepatitis?
At home, you can support hepatitis recovery by getting plenty of rest to help your body fight the infection, staying well-hydrated with water and clear fluids, eating small frequent meals if nausea is present, and choosing nutrient-rich foods that are easy to digest. Completely avoid alcohol as it places additional stress on your already inflamed liver, and check with your doctor before taking any medications or supplements including over-the-counter pain relievers. Monitor your symptoms and get regular blood work as recommended to track your liver inflammation and recovery progress. Maintain good hygiene to prevent spreading the virus to family members.
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  8. 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.
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.

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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.
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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.
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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.
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Complement Component C3c
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