LT033 RIQAS Explained - 38 Pages

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Catalogue excerpts

QUALITY CONTROL Randox International Quality Assessment Scheme Complete QC solutions for results you can trust

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EQA External Quality Assessment (EQA) is an essential aspect of any laboratory operation. EQA provides a means of assessing the analytical performance of a laboratory compared to other laboratories utilising the same methods and instruments. Overall Objective of EQA To develop interlaboratory comparability which allows standardisation of diagnostic testing. EQA measures a laboratory's accuracy using 'blind' samples that are analysed as if they were patient samples. Results are returned to the scheme organiser for statistical analysis. Laboratories receive a report comparing their individual performance...

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EQA RIQAS is the largest international EQA scheme in the world. It is used by more than 40,000 laboratory participants in 124 countries. 32 programmes are currently available. RIQAS Programmes • Ammonia/Ethanol • Anti-TSH Receptor • Blood Gas • BNP • Cardiac • Cerebrospinal Fluid (CSF) • Clinical Chemistry • Coagulation • CYFRA 21-1 • ESR • Glycated Haemoglobin (HbA1c) • Haematology • Human Urine • Immunoassay • Immunoassay Speciality 1 • Immunoassay Speciality 2 • Immunosuppressant • Lipid • Liquid Cardiac • Maternal Screening • Serology Epstein Barr Virus (EBV) • Serology (HIV/Hepatitis) • Serology...

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Benefits RIQAS samples are custom-manufactured to be both stable and similar to human samples. Large database of users • high level of participation ensures a large database of results and analytical methods, A therefore increasing statistical validity. User-friendly reports • Regular reports with rapid turnaround, ensuring corrective actions can be taken prior to analysis of subsequent samples. • Simple one page per parameter format enables at-a-glance performance assessment, saving valuable laboratory time. • Complimentary multi-instrument and interlaboratory reports allow comparative performance...

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RIQAS reports are presented in a user-friendly, one page per parameter format. This allows easy interpretation of your analytical performance. RIQAS Reports • Statistical breakdown by all methods, your method and, where applicable, your instrument including running means for the last 10 samples. • Compare your instrument group, method group and all methods using the histogram. • Identify trends, biases and precision problems using the visual charts. • The Target Score chart grades your performance in a moving window over the last 20 samples, including the previous cycle. • At-a-glance summary...

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Web-Based Data Transfer RIQAS.Net offers easy, direct access for the submission of results and retrieval of reports direct from the RIQAS host server. • Available in multiple languages. • Confidentiality and security is maintained through the use of password protected access. • Submit current, corrected and future results (normal policies apply), directly into the RIQAS database. Receipt of results is confirmed by e-mail. •Multi-lingual registration identifier provides simple identification of multiple registrations. • Additions and changes to assay details can be made quickly and easily online....

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Participation in RIQAS Participation in RIQAS follows these simple steps: Participant registers the instruments and methods used in their lab by completing the enrolment document. Enrolment documents are available from riqas.com and should be submitted 3 weeks before the cycle starts. Check RIQAS policies in method questionnaire. Participant analyses the sample on the recommended date, carefully following the instructions for use. Participant enters their results via RIQAS.Net or on the return sheet and submits electronically, by fax or post before the final deadline. Participant receives a set...

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Standard Report Performance data is presented in a one page format with up to seven sub-reports. Statistics for all methods, your method and instrument group (programme specific). Method and instrument comparison. Multi-Method Stat Section: Enables assessment of the performance of each method. Levey-Jennings Chart: Details features of your laboratory’s performance. Target Score: This unique chart provides a numerical index of performance, allowing at-a-glance assessment. Helps to identify trends and shifts in performance. Text Section: Rapid assessment of concentration related biases.

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Text Section The text section summarises the statistical information for each parameter. RIQAS performance indicators include SDI, Target Score and %Deviation. Acceptable performance criteria: SDI < 2 Target score > 50 %Deviation < defined acceptable limits Performance statement appears here if performance indicators exceed limits Report is presented in your chosen unit. After statistical reduction, some results are excluded. Number of returned results used to generate Mean for Comparison. Average value of all laboratories’ results. Ideally this will be your instrument group mean. If N<5 for instrument...

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The Bar Graph is intended as a quick visualisation of how your lab’s result compares to the method mean, instrument mean and all method mean. Your method group Your instrument group (programme specific) Total of 673 laboratories reported values between 35.96 and 36.63. RIQAS reports show your unit of measurement. 58 laboratories reported values between 33.29 and 33.96 in your method group. 25 laboratories reported values between 37.96 and 38.62 in your instrument group. Your Result.

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Levey-Jennings Chart SDIs reflect laboratory performance in relation to fit-for-purpose SDPAs and are useful to monitor performance over time. Acceptable performance is SDI < 2. Where a result has been returned, the Mean for Comparison for each sample is indicated at the top of the chart, allowing easy assessment of concentration related bias: I: Instrument mean M: Method mean A: All method mean N = No result returned from your laboratory. Sample number. This line indicates a change in registration details for this parameter. Your SDI (Standard Deviation Index). C = Corrected results will be accepted...

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