hepatitis a blood test lab procedure
Viral hepatitis, such as hepatitis C (HCV), hepatitis B (HBV) and hepatitis A (HAV), is diagnosed by your symptoms, a physical exam, and blood tests. Someties imaging studies such as a sonogram or CAT scan and a liver biopsy are also used.or hepatitis C, the CDC recommends that you have a blood test if any of the following is true: 1  You have received an organ transplant or transfusion in the past.