RIQAS Explained
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QUALITY CONTROL RIQAS Explained

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...

RIQAS is the largest international EQA scheme in the world. It is used by more than 31,000 laboratory participants in 115 countries worldwide. Twenty-four programmes are currently available. Accreditation RIQAS provides Certificates as proof of EQA participation and performance for laboratory accreditation purposes. RIQAS is a UKAS accredited Proficiency Testing Provider, No. 0010, and is accredited to ISO/IEC 17043:2010, 'Conformity AssessmentGeneral Requirements for Proficiency Testing'. Accreditation to ISO/IEC 17043:2010 highlights the superior quality and excellence of RIQAS. UK...

RIQAS samples are custom-manufactured to be both stable and similar to human samples. • high level of participation ensures a large database of results and analytical methods, therefore increasing statistical validity. A • Programmes accepted by National and International accreditation bodies worldwide. • Human samples free from interfering preservatives increase confidence that EQA performance mirrors the performance of patient samples. • Optimised shipping of samples for each cycle. • Wide range of parameters covering a broad spectrum of laboratory testing. • Regular reports with rapid...

RIQAS Reports RIQAS reports are presented in a user-friendly, one page per parameter format. This allows easy interpretation of your analytical performance. RIQAS Reports Multi-Instrument Reports • tatistical breakdown by all methods, your method and, where S applicable, your instrument including running means for the last 10 samples. Laboratories can register up to five instruments at no extra cost. Individual reports for each instrument plus a unique multiinstrument report are provided. • ompare your instrument group, method group and all methods using C the histogram. • Identify trends,...

Web-Based Data Transfer The RJQASNet system offers easy direct access forthe submission of results and retrieval of reports direct from the RJQAS host server * Liquid ra*dp-to-LM* • Provided In primary cubes with no pre pa ratio it re qui red • Quarterly sjialysii {2 samples per distribution) • Quantitative reports available within 72 hours or submbsion deadline Home Lagljl □alaEnlrYT PDF Reports T Logout Please login to the system You need to login to the system in order to enter results/assay details changes and downlead Enter Results - Chaoae Cycle end Sample CycleSft. Sarpotel Cycles*...

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 polices in method questionnaire. Participant receives a set of numbered samples along with a username/ password to access RIQASNet. Participant analyses the sample on the recommended date, carefully following the instructions for use. Participant receives report by e-mail or post. Participant submits the results via...

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.

Text Section The text section summarises the statistical information for each parameter Glucose, mg/dl Your Result Acceptable limits derived from Biological Variation Acceptable limits of performance for RIQAS RIQAS performance indicators include SDI, Target Score and %Deviation. Acceptable performance criteria: %Deviation < defined acceptable limits Performance statement appears here if performance indicators exceed limits Report is presented in your chosen unit. Number of returned results used to generate Mean for Comparison. Average value of all laboratories' results. Uncertainty...

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. AII mo+k^^c H v +u A H Your instrument group All methods Your method group / &.r -J Total of 673 laboratories reported values between 35.96 and 36.63. 58 laboratories reported values between 33.29 and 33.96 in your method group. Your Result. RJQAS reports show your unit of measurement. 25 laboratories reported values between 37.96 and 38.62 in your instrument group.

Levey-Jennings Chart SDIs reflect laboratory performance in relation to fit-for-purpose SDPAs and are useful to monitor performance overtime. Acceptable performance is SDI < 2. Sample Number 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: This line indicates a change in registration details for this parameter Your SDI (Standard Deviation Index) N - No result returned from your laboratory No statistics are shown. Sample number C = Corrected results will be accepted for...

Target Score Chart The Target Score (TS) allows participants to assess their performance at a glance. The TS relates the %Deviation of your result from the Mean to a Target Deviation for Performance Assessment (TDPA). TDPAs are set to encourage participants to achieve and maintain acceptable performance. TDPAs are fit-for-purpose performance criteria which are set taking guidance from ISO/IEC17043, ISO13528 and IUPAC. Target Deviations for Performance Assessment are also used to calculate the Standard Deviation for Performance Assessment (SDPA). 1 2 Acceptable Need for improvement This is...