quality assurance

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  • Created by: Lou
  • Created on: 30-04-17 13:34
what describes 'quality control'?
everything the lab does to assure a high quality service to its users
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what describes 'internal quality control' ?
each day labs analyse materials with known concentrations of specific substances to ensure, in real time, reliable results
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what describes 'external quality control'?
independent, objective data on individual labs and test method performance
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what describes 'analytical sensitivity' ?
smallest amount of analyte a method can distinguish from zero with 95% confidence
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what describes 'analytical specificity' ?
the ability of the assay to discriminate an analyte from a potentially interfering analyte
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what describes 'systematic bias'?
bias resulting from the system, leading to systematic errors, in contrast to random errors
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what describes 'systematic error (drift)'?
bias in measurement that lead to measured values being systematically too high/ low.
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what describes 'linearity' ?
the ability of an analytical procedure to obtain test results that are directly proportional to the concentration of analyte
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what describes 'clinical audit' ?
a quality improvement process that seeks to improve patient care and outcomes via systematic reviews against explicit criteria
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how are reference ranges calculated?
the average value of the group plus or minus 2 standard deviations of the average
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Card 2

Front

what describes 'internal quality control' ?

Back

each day labs analyse materials with known concentrations of specific substances to ensure, in real time, reliable results

Card 3

Front

what describes 'external quality control'?

Back

Preview of the front of card 3

Card 4

Front

what describes 'analytical sensitivity' ?

Back

Preview of the front of card 4

Card 5

Front

what describes 'analytical specificity' ?

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