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The impact of QC frequency on patient results
John Yundt-Pacheco1, Curtis A Parvin
1Bio-Rad Laboratories' Quality Service Division, Plano, TX, USA.
MLO: Medical Laboratory Observer
|October 4, 2008
Abstract:
The expected number of unacceptable patient results due to an undetected, malfunction--E(Nu)--can be set as a patient-based quality goal. Using the number of patients tested between QC specimens as a design parameter allows one to design QC strategies that meet specified patient-based quality goals. The QC utilization rate can be minimized in a QC design for a given E(Nu). The QC-utilization rate achievable depends on how close analytical imprecision is to the total allowable error.
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