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MLT-Internal QC

Clinical Chemistry

QuestionAnswer
What is the ISO used to ensure quality of examination results? ISO15189 Clause 5.6.2.1
What is the criteria of a QC material? Shall react in a manner as close as possible to patient samples
How many levels of clinical relevant concentrations of analyte for the QC? 2
What is the example of QC system Westgard QC system
What is the chart used in Westgard? levey jennings chart
What is Total Allowable Error ? Maximal degree of error that is acceptable for an analyte
What does 'Accuracy' measure? Bias
What does 'Precision' measure? Spread
What does 'Imprecision' measure? Measurement Uncertainty
What does Bias(Inaccuracy) mean? How far the test value from the true value
Measurement Uncertainty are ________ effects? Random
Bias are _______ effects? Systematic
Created by: kencho
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