Which diagnostic test would help confirm a diagnosis of hepatitis C infection?

Which diagnostic test would help confirm a diagnosis of hepatitis C infection?

• A. Liver biopsy
• B. Serology for anti-HCV antibodies
• C. Ultrasound
• D. Magnetic resonance imaging (MRI)

Answer: (B)

The diagnosis of hepatitis C infection is primarily confirmed through serological testing, specifically by detecting antibodies against the hepatitis C virus (anti-HCV antibodies) in the blood. This test is critical as it indicates whether a person has been exposed to the virus. Following a positive anti-HCV antibody test, further testing is typically performed to assess the viral load and determine the presence of active infection. In contrast, a liver biopsy is not a diagnostic test for the infection itself; it is usually employed to assess the extent of liver damage or fibrosis in individuals already diagnosed with hepatitis C. Ultrasound imaging can assist in evaluating liver structure and detecting complications associated with chronic liver disease but does not confirm the presence of the virus. Similarly, an MRI may provide detailed visuals of the liver but is not used to diagnose an active hepatitis C infection. Therefore, serology for anti-HCV antibodies serves as the first-line diagnostic test to confirm hepatitis C infection, making it the appropriate choice among the options provided.

The diagnosis of hepatitis C infection is primarily confirmed through serological testing, specifically by detecting antibodies against the hepatitis C virus (anti-HCV antibodies) in the blood. This test is critical as it indicates whether a person has been exposed to the virus. Following a positive anti-HCV antibody test, further testing is typically performed to assess the viral load and determine the presence of active infection.

In contrast, a liver biopsy is not a diagnostic test for the infection itself; it is usually employed to assess the extent of liver damage or fibrosis in individuals already diagnosed with hepatitis C. Ultrasound imaging can assist in evaluating liver structure and detecting complications associated with chronic liver disease but does not confirm the presence of the virus. Similarly, an MRI may provide detailed visuals of the liver but is not used to diagnose an active hepatitis C infection.

Therefore, serology for anti-HCV antibodies serves as the first-line diagnostic test to confirm hepatitis C infection, making it the appropriate choice among the options provided.