Can you interpret the following lab results: hepatitis C virus (HCV) RNA quantitative real‑time polymerase chain reaction (PCR) <15 IU/mL not detected, HCV RNA quantitative real‑time PCR <1.18 IU/mL not detected, hepatitis A immunoglobulin M (IgM) non‑reactive, hepatitis B core antibody (IgM) non‑reactive, hepatitis C antibody reactive, and hepatitis B surface antigen non‑reactive?

Lab Interpretation: Past Hepatitis C Infection with Viral Clearance

These labs indicate past hepatitis C virus (HCV) exposure with current viral clearance—meaning you were previously infected with HCV but the virus is no longer detectable in your blood. You do not have active hepatitis C infection, hepatitis A, or hepatitis B.

Breakdown of Your Results

Hepatitis C Status: Cleared Infection

• HCV antibody REACTIVE: You have antibodies to hepatitis C, indicating past exposure to the virus 11
• HCV RNA <15 IU/mL NOT DETECTED (tested twice): No active virus is present in your blood 22

When HCV antibody is positive but HCV RNA is negative on testing, this indicates either past resolved HCV infection or, less commonly, a false-positive antibody test 22. The fact that you have two separate negative HCV RNA tests strongly supports that this represents cleared infection rather than false positivity 22.

What This Means Clinically

According to CDC guidelines, a negative HCV RNA result in the setting of positive HCV antibody most commonly indicates resolved infection 22. Among persons who clear HCV infection:

• 15-25% of those infected as older adults (>45 years) spontaneously resolve their infection
• 40-45% of those infected as children or younger adults clear the virus 22

You should be informed that you do not have evidence of current HCV infection 3. The HCV antibody will likely remain positive indefinitely even though the infection has cleared 4.

Hepatitis A Status: No Active Infection

• Hepatitis A IgM NON-REACTIVE: No acute hepatitis A infection 5

Hepatitis B Status: No Current or Past Infection

• Hepatitis B surface antigen NON-REACTIVE: No active hepatitis B infection 5
• Hepatitis B core antibody (IgM) NON-REACTIVE: No acute hepatitis B infection 5

Important Caveats

When to Retest HCV RNA

If you have ongoing risk factors for HCV exposure (such as injection drug use, hemodialysis, or HIV infection), repeat HCV RNA testing should be considered to detect potential reinfection 3. Reinfection can occur after spontaneous or treatment-induced viral clearance, particularly in high-risk populations 6.

Rare Scenarios to Consider

• Intermittent viremia: In rare cases, persons with chronic HCV infection can have intermittent HCV RNA positivity 22. However, two negative tests make this unlikely.
• Very early acute infection: If you had a recent exposure within the past 6 months, antibodies may be present while RNA is temporarily undetectable during acute infection 22. Clinical context matters here.
• Immunocompromised patients: Occasionally, immunocompromised persons with chronic HCV infection can be persistently anti-HCV negative, though you are antibody-positive 22

No Further Action Needed Unless...

You do not need HCV treatment, as there is no active infection 11. However:

• If you have clinical evidence of liver disease or recent HCV exposure, discuss repeat HCV RNA testing with your provider 1
• If you remain at risk for HCV exposure, periodic retesting may be appropriate 3

Summary Algorithm

HCV Antibody REACTIVE + HCV RNA NOT DETECTED (×2) = 
→ Past HCV infection, now cleared
→ No active infection
→ No treatment needed
→ Retest only if ongoing risk factors or clinical suspicion

Your hepatitis A and B results show no evidence of current or past infection with these viruses.