Hepatitis B: Tests
Infectious liver disease caused by the hepatitis B virus, spread primarily through sexual contact or through perinatal (vertical) transmission; now preventable by vaccine. Approximately 5% of acute hepatitis B cases become chronic.
Part of: Hepatitis B
Hepatitis B Testing
A blood test will show if you have hepatitis B. Blood tests are done at a doctor’s office or outpatient facility. A blood sample is taken using a needle inserted into a vein in your arm or hand. The blood sample is sent to a lab to test for hepatitis B.
If you are at higher risk of getting hepatitis B, get tested. If you are pregnant, you should also get tested. Many people with hepatitis B do not know they are infected. Early diagnosis and treatment can help prevent liver damage.
Your doctor may suggest getting a liver biopsy if chronic hepatitis B is suspected. A liver biopsy is a test to take a small piece of your liver to look for liver damage. The doctor may ask you to stop taking certain medicines before the test. You may be asked to fast for 8 hours before the test.
During the test, you lie on a table with your right hand resting above your head. Medicine is applied to numb the area where the biopsy needle will be inserted. If needed, sedatives and pain medicine are also given. The doctor uses a needle to take a small piece of liver tissue. After the test, you must lie on your right side for up to 2 hours. You will stay 2 to 4 hours after the test before being sent home.
A liver biopsy is performed at a hospital or outpatient center by a doctor. The liver tissue is sent to a special lab where a doctor looks at the tissue with a microscope and sends a report to your doctor. NIH – National Institute of Diabetes and Digestive and Kidney Diseases