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MLT-Internal QC
Clinical Chemistry
Question | Answer |
---|---|
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 |