Inhibition controls for qualitative real-time PCR assays: are they necessary for all specimen matrices?

J Clin Microbiol

Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA

Published: June 2014

A retrospective analysis of 386,706 specimens representing a variety of matrix types used in qualitative real-time PCR assays determined the overall inhibition rate to be 0.87% when the inhibition control was added preextraction to 5,613 specimens and 0.01% when the inhibition control was added postextraction but preamplification in 381,093 specimens. Inhibition rates of ≤ 1% were found for all specimen matrix types except urine and formalin-fixed, paraffin-embedded tissue.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4042775PMC
http://dx.doi.org/10.1128/JCM.03389-13DOI Listing

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