Hepatitis Testing: Screening for Hepatitis A, B, and C
Hepatitis means inflammation of the liver, and viruses are a common cause. Different tests detect different hepatitis viruses and can show current infection or past exposure. Some hepatitis tests detect antibodies produced by the immune system, while others detect viral antigens or genetic material. Hepatitis B and C can become chronic and may damage the liver over time without causing symptoms. Screening recommendations vary by risk factors and public health guidance, so test selection is often individualized.
Key Takeaways
- Hepatitis means inflammation of the liver, often caused by viruses.
- Different tests detect different hepatitis viruses and can show current infection or past exposure.
- Some hepatitis tests detect antibodies, while others detect viral antigens or genetic material.
- Hepatitis B and C can be chronic and may damage the liver over time without symptoms.
- Screening recommendations vary by risk factors and public health guidance.
Frequently Asked Questions
What is the difference between hepatitis A, B, and C tests?
Each virus has its own markers. Hepatitis A testing often detects antibodies; hepatitis B uses a panel of antigens and antibodies; hepatitis C usually starts with an antibody test, followed by RNA testing if positive.
Can I order hepatitis testing without a doctor?
Yes, hepatitis panels are available through direct-access testing. A clinician should interpret positive results.
Do I need to fast for hepatitis testing?
Fasting is usually not required.
How are hepatitis test results interpreted?
Results are interpreted in combination. For example, a positive hepatitis C antibody needs a follow-up RNA test to confirm current infection.
Sources
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