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Ringtest is also called proficiency test or interlaboratory test. Usually a reference institute sends identical samples which have to be analyzed for special parameters to different laboratories. The industrial, medical or research laboratory gets a limited time with a deadline to send in the analysis results. The statistical evaluation and ...
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The most common EQA process is proficiency testing, in which an organization sends samples to a group of different laboratories and results are compared among the group. Retesting of the same sample by different laboratories and on-site visits to evaluate laboratory processes may also be part of an EQA scheme. [1]
There are different reasons for performing a round-robin test: determination the reproducibility of a test method or process; verification of a new method of analysis. If a new method of analysis has been developed, a round-robin test involving proven methods would verify whether the new method produces results that agree with the established method.
The Clinical Laboratory Improvement Act of 1988 (CLIA 88) was passed in the USA subsequent to the publication of an article in November 1987 in The Wall Street Journal entitled "Lax Laboratories: The Pap Test Misses Much Cervical Cancer Through Labs Errors", which alerted the public to the fact that a pap smear may be falsely negative.
Early versions of proficiency testing—known as surveys—which laboratories use to help test and ensure accuracy, were first initiated in 1949. Laboratories first began receiving CAP accreditation in 1964, [ 8 ] and the organization was later given authority to accredit medical laboratories as a result of the Clinical Laboratory Improvement ...
AAB developed a two-day review program to help individuals prepare for the HEW Proficiency Examination, known as the “Proficiency Examination Reviews” or “PERs”. [12] The notes used during the reviews were compiled into a reference manual that became the PER Handbook which continued into its tenth edition in 2016. [12]
ISO/IEC 17025 General requirements for the competence of testing and calibration laboratories is the main standard used by testing and calibration laboratories. In most countries, ISO/IEC 17025 is the standard for which most labs must hold accreditation in order to be deemed technically competent.