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Interpretation of quantitative pcr results
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Interpretation of quantitative pcr results

  I just picked up my quantitative pcr results for HCV from the health center but cannot interpret the results. They could not either.My doctor is out of town for a week. The results say <2000-Normal.What does this mean?
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Dear Glen:
I appreciate your fairly straight-forward question.  Depending upon the specific laboratory and the specific test, quantitative HCV RNA have a lower limit below which they cannot detect HCV RNA.  Some labs have a lower limit of 500 copies/ml and others such as yours have a lower limit of 2000 copies/ml.  I know some labs are working on assays with detection down to 50 copies/ml.  We know the lower limits of detection because we test the PCR assays with blood containing known quantities of HCV RNA.  
As a result, when a PCR test is negative, we aren
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