. "5 Viral Hepatitis Services." Hepatitis and Liver Cancer: A National Strategy for Prevention and Control of Hepatitis B and C. Washington, DC: The National Academies Press, 2010.
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Hepatitis and Liver Cancer: A National Strategy for Prevention and Control of Hepatitis B and C
TABLE 5-3 Interpretation of Hepatitis C Virus Diagnostic Test Results
If HCV Test Result Is:
Interpretation
Action
Anti-HCV Screening Test(EIA or CIA)
Anti-HCV Supplemental Test: RIBA
Anti-HCV Supplemental Test: HCV RNA
HCV Status
Additional Testing orEvaluation Required
Positive
Not done
Not done
Not known
HCV RNA; RIBA if RNA negative
Positive
Not done
Negative
Probably not currently HCV infected; further testing requireda
Obtain RIBA; if RIBA positive, repeat RNA
Positive (high s/co ratio)
Not done
Not done
Antibody probably true positive; need to distinguish past from current infection
HCV RNA
Positive
Negative
Not done
False positive anti-HCV
None
Positive
Positive
Not done
Past or current HCV infection
HCV RNA; if RNA positive, evaluate for liver disease
