Hepatitis B Virus Genotype Determination (Serum/Plasma)
This test identifies which specific genotype of the Hepatitis B virus is present in your blood. Knowing your genotype helps healthcare providers tailor treatment and monitor your infection more effectively.
["Understanding your Hepatitis B genotype can guide treatment decisions and long-term care."]
Key facts at a glance
- LOINC
- 72846-9
- Short code
- HBV 194 Islt Genotyp
- Synonyms
- HBV 194 Islt Genotyp
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- genotyping
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why This Test Matters for You
Hepatitis B virus (HBV) has multiple genotypes, each affecting how the virus behaves differently in the body. This test helps determine which genotype you have, which can influence treatment options and the progression of your infection.
How the Test Works
Your blood sample is analyzed using a molecular method to detect and identify the specific genetic sequence of the Hepatitis B virus. This process involves examining the virus’s DNA to classify it into one of the known genotypes.
Sample Collection and Preparation
A blood sample is drawn from your arm, typically collected in a tube that separates serum or plasma from blood cells. This sample is then sent to a laboratory for testing.
What to Expect Before the Test
There are no special preparations needed for this test. You may have some mild discomfort from the needle, but this usually goes away quickly. If you are on blood-thinning medication, inform your healthcare provider before the test.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Knowing your Hepatitis B genotype is crucial because different genotypes may respond differently to antiviral medications. Some genotypes are more likely to cause chronic infection or liver damage, so early and accurate identification can help manage your health more effectively and prevent complications.
Short name
Hepatitis B Genotype Test
Frequently asked questions
What Does a Positive Result Mean?
How Often Should I Get This Test?
Can This Test Be Done at Home?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy