What analytical performance is needed for a laboratory test?
In the US, CLIA defines minimum standards of analytical quality in the form of the criteria for acceptability in proficiency testing surveys. These criteria define the allowable total error around a target value (TV). For example, acceptable test results for cholesterol are described as TV plus/minus 10%, which means that test results should be within 10% of the correct value. Most countries have proficiency testing or external quality assessment schemes that define standards for analytical quality in a similar manner. Note that use of an allowable total error does not provide a specification for an individual characteristic, such as imprecision, inaccuracy, interference, recovery, etc., but provides a requirement of the total amount of error when all sources are combined.
Related Questions
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- What analytical performance is needed for a laboratory test?
