Proactive Preventive Health Care for Men: Essential Lab Tests and Screenings

Hepatitis C is a viral infection that affects the liver and can lead to serious health complications if left untreated. The virus is primarily transmitted through contact with infected blood, most commonly through sharing needles or other drug injection equipment. It can also be spread through unsterilized medical equipment, contaminated blood transfusions (particularly before widespread screening began in the 1990s), and less commonly through sexual contact or from mother to child during birth. Many people with hepatitis C do not experience symptoms initially, which is why laboratory testing is essential for diagnosis.

Laboratory testing for hepatitis C typically begins with a screening test that detects antibodies to the hepatitis C virus in the blood. This antibody test indicates whether a person has ever been exposed to the virus. If the antibody test is positive, a follow-up test called an HCV RNA test is performed to determine if the virus is currently active in the body. The RNA test measures the actual genetic material of the virus and confirms whether someone has an ongoing infection. Additional tests may include liver function tests to assess how well the liver is working and genotype testing to identify the specific strain of the virus, which helps guide treatment decisions.

Early detection through laboratory testing is crucial because hepatitis C can be effectively treated with modern antiviral medications. Without treatment, chronic hepatitis C can lead to liver damage, cirrhosis, liver cancer, and liver failure over time. Regular monitoring through blood tests allows healthcare providers to track the progression of the disease and evaluate liver health. People at higher risk, including those who have used injection drugs, received blood transfusions before 1992, have HIV, or were born to mothers with hepatitis C, should discuss screening with their healthcare provider.

The treatment landscape for hepatitis C has improved dramatically in recent years. Current antiviral therapies can cure more than 95 percent of infections, typically within 8 to 12 weeks of treatment. Laboratory tests are used throughout the treatment process to monitor viral levels and confirm cure, which is defined as having no detectable virus in the blood 12 weeks after completing treatment. Regular follow-up testing ensures that the infection has been successfully eliminated and that liver function is improving.