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- Six Sigma Risk Analysis
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- Basic QC Practices Online Course
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- Overruled - A Westgard QC Zoom
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- CLIA & Quality
- Quality Requirements (CLIA and others)
- 2024 CLIA Proposed Acceptance Limits for Proficiency Testing
- Consolidated measurement uncertainty specifications
- Consolidated Comparison of Immunoassay Performance Specifications
- New Goals for MU Goals
- Consolidated Comparison of Chemistry Performance Specifications
- The New Era of Biological Variation: EUBIVAS
- Consolidated Comparison of Hematology and Coagulation Performance Specifications
- French EQA performance specifications
- A selection of SEKK-DMax specifications
- Belgium EQA performance specifications
- Spanish Minimum Consensus Performance Specifications
- Final Milan Hierarchy
- Milan 2014 Consensus Draft on Quality Specifications
- Minimum analytical quality requirements
- Minimum Specifications from Biological Variation database
- Optimal Biological Variation database specifications
- CLIA Requirements for Analytical Quality
- Desirable Biological Variation Database specifications
- Rilibak - German Guidelines for Quality
- Biological Variation in Patients with Disease
- Clinical Quality Requirements
- European Biologic Goals
- Biological Variation Database references
- Biological Variation Database reference list
- 2016 State of the Art Hematology Performance Specifications
- Quality Requirements for Dogs, Cats, and Horses?
- 1999 Stockholm Consensus Statement
- RCPA Allowable Limits of Performance for Biochemistry
- CLIA Final Rule
- Calculating the consequences of Tightened CLIA Goals
- Contemplating the Consequences of New CLIA Goals
- Evaluating the Proposed CLIA TEa Changes
- 2016 IQCP Users Survey (Global)
- An Outside Review of an IQCP for POC
- 2016 IQCP Users Survey Comments
- Example IQCP for POC chemistry system
- Your Risk-Free IQCP Inspection Tips
- Example IQCP for C. Difficile
- IQCP - Does the P stand for Panic?
- New CMS / CDC Training Guide for IQCP
- 2015 IQCP Survey: The View From Outside
- IQCP Survey 2015: Labs Speak Out!
- CMS goes off-off-label
- Part I: Key Changes
- Part II: Perplexity about Complexity and Personnel
- Part III: QC - Quality or Compliance?
- Part IV: The New Method Validation Regulations
- Part V: Method Validation Process and Procedures
- Part VI: Method Validation - Statistical Sense, Sensitivity, and Significance
- Part VII: "Equivalent" QC Procedures
- Part VIII: The Interpretive Guidelines
- Part IX: Appropriate QC Procedures
- Part X: Lies, Damn Lies, and "Equivalent" QC
- A Scientific Rationale for Equivalent QC?
- Analysis of the Rationale for "Equivalent" QC
- "Equivalent" QC Option 4: Back to the future
- Is this the end of EQC 1, 2, 3?
- QC Design
- The Need for a Mean Rule: Designing QC for Phosphorus
- What's the TEa for D? Allowable Error for vitamin D
- Glucose, European Biologic Goal
- QC for Sysmex Hematology parameters
- Potassium
- Cholesterol, Analytical Quality Requirement
- Immunoassay QC with Higher N Rules
- Multitest Chemistry Analyzer
- Cholesterol, Clinical Quality Requirement
- POC Glucose Test
- Cholesterol, European Biologic Goal
- Hemoglobin
- Leukocyte Count
- Digoxin
- Glycated Hemoglobin
- Patient Data or Traditional QC? Evaluating the options for QC and QC goals
- Multitest Chemistry Analyzer - 16 Years Later
- Evaluating Quality Requirements for HbA1c
- Basic QC Practices
- 全球质量调查结果:高与低体积Laboratories
- The 2021 Global QC Survey: The fine print
- The 2021 African QC Survey Results
- 2021 QC Survey Results for Hematology
- The 2021 QC Survey Results for Chemistry
- The 2021 Latin and South American QC Survey
- The 2021 European (and others) QC Survey Results
- The 2021 Asia QC Survey Results
- The 2021 Middle-East QC Survey Results
- The 2021 USA QC Survey Results
- The 2021 Great Global QC Survey Results
- A Downside of Negative Controls for SARS-COV-2 Testing?
- Another look at Pre-Analytical Error Rates, 2021
- Plateau-ing on progress at the pre-analytical phase
- Leading Laboratories Lag Behind in QC Practices
- A look at pre-analytical error rates, 2018
- Great Global QC Survey of Hematology Practices
- A Global Survey of Veterinary Laboratory QC Practices
- Latin and South American QC Survey Results
- Break all the rules, part 3 - answers
- Break all the rules (Part 3)
- Evidence of Improving Pre-Analytical Quality
- The Great Global QC Survey: Results from Global (non-US) Laboratories
- The Great Global QC Survey: Results from US Laboratories
- The 2017 Great Global QC Survey Results
- Break all the Rules! (Part Two)
- Break All the Rules - Answers to Part One
- Break all the Rules! (Part One)
- What changed with this QC?
- Would your lab have caught this error, part 2?
- Would this QC get you fired?
- Has your QC been Vanity-Sized?
- Would your lab have caught this error?
- QC - the Practice
- Six Sigma
- Quality on the Sigma Scale at Aga Khan Laboratory
- Six Sigma across the Total Testing Spectrum
- Six-Sigma - Medical Cutoffs as Tolerance Limits
- Six Sigma - Quality Design and Control Applications
- Six Sigma - Patient Data for Assessing Process Performance and Stability
- Six Sigma - Designing Quality Control for Neonatal Screening Assays
- Six Sigma - A Project in Action
- Sigma Metric Analysis
- Sight OLO in UK, Multimode Analysis
- Dymind DH76 in Bulgaria, Multimode Analysis
- Roche cobas c702 (two) in Vietnam, multimode analysis
- Mindray BS 2000M in China, Multimode analysis
- Roche cobas 6000 c501 in Saudi Arabia, multimode analysis
- ADVIA 2120i in Croatia, Multimode Analysis
- Mindray BC 7500 in China, multimode analysis
- Sysmex XN 350 in India, multimode analysis
- VITROS 5600 assays in India, before and after lockdown, Multimode analysis
- 多模分析Cobas 6000年土耳其IA化验ey
- Multimode analysis of a MicroLab RX-50 in India
- Multimode analysis of an Alinity analyzer in Pakistan
- Multimode analysis of Atellica CH930 in Spain
- Multimode analysis of a Roche Cobas c501 chemistry analyzer in Turkey
- State of the Art HbA1c performance? Model Assay with Meager Performance
- Multimode analysis of an Atellica CH930 in Romania
- A Roche Cobas 6000 in Ethiopia
- A Sysmex XN-L XN-350 in the Netherlands
- Dimension Rxl in India
- Dirui CS-T240 in Ethiopia
- Mindray BS-2000 and Beckman AU 5800: Sigma metrics of Reagents and Reagent swaps
- Multimode Sigma metric analysis of Alinity Immunoassays
- Erba XL 640 in India
- Multimode Sigma metric analysis of an Abbott Alinity
- Multimode Sigma metric analysis of a DxC 700
- Multimode Sigma metric analysis of a cobas 8000
- Sigma metric analysis of an Atellica in Brazil
- ADVIA Centaur XPT Thyroid Function Testing
- AU5800 in an Indian laboratory
- bs - 200 Sigma-metrics包插入
- Erba EM 360 autoanalyser Sigma-metric analysis
- Sigma metric analysis of a Suzuka chemistry analyzer
- Sigma metric Analysis of a Landwind LW D3600
- A1C EZ 2.0 Analyzer: Sigma-metric assessment
- Medical Laboratory of the Second Affiliated Hospital of Kunming Medical University
- JEOL BioMajesty JCA-BM6010/C Clinical Chemistry Analyzer: Sigma-metric analysis
- Cobas b 101 HbA1c Analyzer: Sigma-metric assessment
- i-Smart 300 analyser: Sigma-metric assessment
- Sigma metric Analysis of a Sysmex XN
- Sigma-metrics of the KeyLab veterinary analyzer
- Analysis of 4 HbA1c instruments by Sigma-metrics
- An Olympus AU 640 and AU 2700 in a Veterinary Reference Laboratory
- Sigma-metric Analysis of an AU 5800 in Turkey
- Sigma-metrics of some Chemistry Instruments in China
- Sigma-metrics Trueness Evaluation of Serum Albumin methods
- Sigma-metrics of an AU 680
- Comparison of a Vitros 5600, an Hitachi 7170, and a Roche Cobas 8000
- Sigma-metrics of an AU 5800
- Sigma-metrics of a Sysmex XN-2000
- Sigma-metrics of a Sysmex Coagulation Analyzer cs5100
- Sigma-metrics for HBV
- Sigma-metrics of a Mindray BC-3600 hematology analyzer
- Sigma-metrics of a cobas 8000 c701 chemistry analyzer
- When the POC and the Core Lab don't agree
- Sigma-metrics of two blood-gas devices and a core lab analyzer
- Sigma-metrics of a chemistry analyzer in Ghana
- Evaluation of Mindray BC 6800 Hematology analyzer
- Evaluation of a Chinese Automated Chemistry Analyzer
- Sigma-metrics of Six HbA1c methods
- Performance of a POC Chemistry Analyzer
- Evaluation of 3 Glucose monitoring systems
- Evaluation of 4 POC instruments
- Evaluation of a blood glucose device
- Evaluation of 5 POC CRP tests
- Field evaluation of POC lipid and glucose analyzers
- Analytical Evaluation of a POC Blood Analysis System
- Three POC Glucose Devices for Neonatal ICU
- Cancer Markers on the UniCel DxI
- Cancer Markers on the Vista, Second Look
- Evaluation of Two HbA1c POC Analyzers
- Second Evaluation of Arkray HbA1c
- Cancer markers on the Vista
- Indian Pilot Study in Sigma-metrics
- Menarini/ARKRAY ADAMS A1c HA-8180V
- Olympus AU2700 plus
- Quality of Blood Glucose Meters, 2011
- Three POC HbA1c methods
- Seven Vitamin D methods
- Two HbA1c POC methods
- Sysmex XT 1800i hematology
- Four Glucose Methods
- Mid-Volume Chemistry analyzer 2009
- Six Hcy methods
- Real-World Chemistry Data
- direct HbA1c method
- A POC Chemistry Device
- Roche Integra 400+
- Sigma Estimates: High Volume Hematology
- WBC on a SE 9500
- Vitros 5.1
- Unicel DxC 800
- Roche Modular
- Sysmex SE 9500
- Sysmex XT 2000i
- Beckman Coulter HMX
- Sysmex XE 2100
- An Architect c16000
- ADVIA 1800
- Architect c16000
- Multiple POC Glucose Methods
- HbA1c on the cobas 6000
- POC Chemistry Instrument
- Roche cobas c311
- POC automated CBC analyzer
- Abbott ARCHITECT c8000
- A direct enzymatic assay for %HbA1c
- Analysis of common cortisol assays
- Analytical Bias Exceeds Desirable Quality Goals in 4 of 5 common Immunoassays
- Quality Standards
- New EFLM goals for Coagulation: An example analysis of an Atellica 360
- None of 3 assays on an Abbott Alinity can meet preferred measurement uncertainty goals
- 13 of 15 assays on a Roche Cobas 8000 cannot meet preferred perimissible uncertainty performance specifications
- 13 of 17 assays on a Roche Cobas 6000 c501 cannot hit preferred measurement uncertainty goals
- Six of Eight Assays on a Atellica CH930 cannot meet pU goals
- An Atellica HbA1c assay cannot meet pU goals
- Six of Seven Assays of a Beckman Coulter AU 680 cannot pU goals
- Six out of Eight assays on ARCHITECT c16000s cannot meet pU goals
- Six of Eight assays of a Hitachi 7600 cannot meet measurement uncertainty performance specifications
- Eight of Nine assays from a Roche Cobas c702 cannot meet pU goals
- MU goals - can anything hit them?
- Can hematology analyzers hit EFLM goals?
- 2019 Comparison of TT4 methods
- New EFLM goals for hematology: fit for purpose?
- 比较佛得角icts from Different Goals
- Alkaline Phosphatase (ALP) Goals
- Glucose Goals
- AST Goals
- Alanine Aminotransferase (ALT) Goals
- Total Protein Quality Goals
- Chloride Quality Goals
- Albumin Quality Goals
- Potassium Quality Goals
- Quality of Blood Glucose Meters, An Update
- Graphic Report of TSH Quality
- Establishing QC Acceptability Criteria for CLIA
- Setting Method Specifications for Glycated Hemoglobin
- The Quality of ...The Quality of... Series
- Risk Analysis
- Resources
- This is How you QC
- Advanced QC Strategies Extras
- Advanced QC Strategies
- Westgard. Where QC Rules.
- Your lab needs help. Westgard's got your back.
- In Memoriam: Per Hyltoft Petersen
- My Mistake: Errata on Planning SQC strategies and adapting QC frequency for patient risk
- It's time to change your tune on QC Frequency
- QC Frequency Calculator (Run Size)
- COVID19 Coverage
- We Wrote the Book on Quality
- We Wrote the Book on Quality
- Worried About Quality? Westgard Can Help
- The Tools You Need
- The Trusted Name in Quality
- 118bet金博宝
- Risk, Error and Uncertainty: Laboratory Quality Management in the Age of Metrology
- Basic QC Practices 4th Edition
- Extras for the Basic Quality Management Systems manual
- Basic Quality Management Systems
- The Poor Lab's Guide to the Regulations 2023-2024 edition
- Extras for the Poor Lab's Guide
- How to Order
- Normalized OPSpecs Chart N=4 90% AQA
- OPSpecs Chart N=4 50% AQA
- Normalized OPSpecs Chart N=2 90% AQA
- Normalized OPSpecs Chart N=2 50% AQA
- Six Sigma Risk Analysis Extras page
- Basic QC Practices Extras page
- Normalized OPSpecs Chart, N=6, 50% AQA
- Normalized OPSpecs Chart, N=3, 50% AQA
- Normalized OPSpecs Chart, N=6, 90% AQA
- OPSpecs Chart N=3 90% AQA
- Order Form
- Six Sigma Table
- Medical Decision Levels
- Glossary of QC Terms
- List of QC References
- ISO Glossary
- Table of Areas beneath Normal Curve
- Basic Method Validation, 4th Edition, extras
- Basic Method Validation, 3rd Edition, FAQs
- Normalized OPSpecs Chart N=4 50% AQA
- OPSpecs Chart N=2 90% AQA
- OPSpecs Chart N=4 50% AQA
- OPSpecs Chart N=4 90% AQA
- QC Selection Grid, Square 1
- QC Selection Grid, Square 2
- QC Selection Grid, Square 3
- QC Selection Grid, Square 4
- QC Selection Grid, Square 5
- QC Selection Grid, Square 6
- QC Selection Grid, Square 7
- QC Selection Grid, Square 8
- QC Selection Grid, square 9
- Sigma Verification of Performance Program
- Torrance Memorial Medical Center Verification of Sigma Performance
- King Fahd Armed Forces Hospital Jeddah Verification of Sigma Performance
- Hospital 108 Hanoi Verification of Sigma Performance
- Delnor Community Hospital Sigma Verification of Performance
- Queen Elizabeth Kota Kinabalu Sigma Verification of Performance
- Police General Hospital of Thailand Verification of Sigma Performance
- Liuzhou Liutie Central Hospital Guangxi Laboratory Verification of Sigma Performance
- University of Chinese Academy of Sciences Shenzhen Laboratory Verification of Sigma Performance
- 10th People's Hospital of Shanghai Verification of Sigma Performance
- N-Health Bangkok Hospital Sigma Verification of Performance
- University Medical Center Ho Chi Minh City Verification of Sigma Performance
- Beijing Obstetrics and Gynecology Hospital Laboratory Sigma Verification of Performance
- People's Hospital of Fujian University of Traditional Chinese Medicine Sigma Verification of Performance
- Xi'an 4th People's Hospital Sigma Verification of Performance
- Zhejiang Province Hu Zhou Central Hospital Sigma Verification of Performance
- 1st Sun Yat Sen University Laboratory Sigma Verification of Performance
- Laboratorio Colcan Sigma Verification of Performance
- Phyathai 2 International Hospital Sigma Verification of Performance
- King Chulalonkorn Memorial Hospital Verification of Sigma Performance
- Min-Sheng General Hospital Sigma Verification of Performance
- VIVA 1A IPS SA Laboratory Sigma Verification of Performance
- San Giovanni Sigma Verification of Performance
- AMS Clinical Service Center Laboratory Verification of Sigma Performance
- Medic Medical Center Laboratory Sigma Verification of Performance
- Hoan My Da Nang Hospital Laboratory Sigma Verification of Performance
- MIOT Hospital Sigma metric Verification of Performance
- Cedars-Sinai Medical Center Core Laboratory Sigma Verification
- Peking Union Medical College Hospital Sigma Verification of Performance
- First Affiliated Hospital of Xi’an Medical University Laboratory Sigma Verification
- Zhujiang Sigma Verification of Performance
- FV Hospital Sigma Verification of Performance
- Zhejiang Lishui Central Hospital Laboratory Sigma Verification of Performance
- Prince Court Medical Centre Sigma Verification of Performance
- Stamford Hospital Sigma Verification of Performance
- Helix Laboratories Sigma Verification of Performance
- West China Hospital Sigma Verification
- Affiliated Hospital of Qingdao University - Sigma Verification of Performance
- Laboratorio de Analisis Clinicas (LAC) of Montevideo, Uruguay Sigma Verification of Performance
- Yunnan First People's Hospital Sigma Verification of Performance
- Shenzhen Nanshan District People's General Hospital: Sigma Verification of Performance
- Loh Guan Lye Sigma Verification of Performance
- Shandong Provincial Hospital Laboratory Sigma Verification of Performance
- Sigma Verification of Cleveland Clinic Abu Dhabi
- Sigma Verification of Multicare Hospitals and Medical Clinics
- Sigma Verification of Tumor Center Lab of Cho Ray Hospital
- Sigma Verification of Saigon Hoan My Performance
- Sigma Verification of People's Hospital of Xinjiang Uygur Autonomous Region
- Sigma Verification of Shengjing Hospital Laboratory
- Sigma Verification of Clinic Laboratory of Women's Hospital, School of Medicine, Zhejiang University
- Saint Francis Hospital Verification of Performance
- Winchester Medical Center Verification of Sigma Performance
- Wuhan Hospital Sigma Verification of Performance
- Sir Run Run Shaw Hospital Sigma Verification of Performance
- Ruian People's Hospital Sigma Verification of Performance
- Ramathibodi Hospital Lean Sigma Verification of Performance
- Serdang Hospital Sigma Verification of Performance
- Quality Healthcare Medical Service of Hong Kong Sigma Verification of Performance
- Ara Damansara Medical Centre Sigma Verification of Performance
- NGHA Dammam Verification of Sigma Performance
- NGHA Al Hasa Verification of Performance
- NGHA Jeddah Sigma Verification of Performance
- Al Borg Laboratory Dammam - Sigma Verification of Performance
- NGHA Riyadh Sigma Verification of Performance
- Bangkok RIA Laboratory Sigma Verification of Performance
- 2016 Westgard Sigma VP User Meeting: Singapore
- Innovative Diagnostics Sigma Verification of Performance
- Penang Pantai Sigma Verification of Performance
- Penang Adventist Sigma Verification of Performance
- Ramathibodi Hospital Sigma Verification of Performance
- Praram 9 Hospital Sigma Verification of Performance
- Laboratory INVITRO Sigma Verification of Performance
- Siriraj Piyamaharajkarun Hospital Sigma Verification of Performance
- PPUKM Sigma Verification of Performance
- QuaLab China - a Sigma VP[TM] partner
- ChiMei Hospital (Yong Kang and Liou Ying branches)
- Sunway Medical Centre - Sigma Verification of Performance
- Bumrungrad International Hospital - Sigma Verification of Performance
- The Medical City - Sigma Verification of Performance
- Westgard Sigma Verification of Performance Program
- Guizhou Provincial People's Hospital
- Zhongshan Hospital Pilot Verification of Performance
- Prodia Laboratories Verification of Performance
- Tools
- Quality Requirements and Standards
- Precision QC - the latest adjectivization of Quality Control
- Patient-Based, Risk-Driven, Real-Time. The Adjective-Hyping of Quality Control
- Perspectives on Analytical Quality Management, Part 5
- Perspectives on Analytical Quality Management, Part 4
- It's time to talk about bias - is it a shift or an uncertainty?
- Perspectives on Analytical Quality (Part 3)
- Perspectives on Analytical Quality (Part 2)
- Perspectives on Analytical Quality (Part 1)
- Desirable is Dead. Welcome to the Age of Minimum Quality
- The Differences Dilemma: How to standardize Sigma metrics in a chaotic world
- 2021 Analytical Performance Specification Update, Chemistry
- The unbearable persistence of bias
- I'm with Quality - Make Quality Great Again
- Quality Goals at the Crossroads: Growing, Going, or Gone?
- Is your lab empowered?
- Global Analytical Goal Survey Comments
- Global Analytical Goal Survey Results
- Back to the Future: 2014 Quality Goals sound a lot like 1976
- Milan Manifesto: Are Quality Goals Evolving, Devolving, or simply Revolving?
- Quality of HbA1c in 2014, Part Three
- Quality of HbA1c in 2014, Part Two
- Quality of HbA1c in 2014
- The Case for Tighter Glucose Quality Requirements
- FDA hears Defiance in the face of Draft Glucose Guidelines
- The Elephant in the Laboratory
- Total Analytic Error: from Concept to Application
- Hitting a Goal, but Missing the Point?
- A Quite Important Quality Indicator
- What's the Right Goal - an example
- Will Molecular Diagnostics repeat our QC mistakes?
- The Quality of Diabetes Testing 2011
- Traceability, Harmonization and Standardization: Why It Matters
- A Dark Secret about the Safety of Medical Devices
- What's the Right Goal?
- Quality of HbA1c, 2011, Part 2
- Quality of HbA1c, 2011
- The Quality Fade
- Quality of Blood Glucose Meters, 2010
- FDA hears concerns on Blood Glucose Meters
- HbA1c in 2010, Part XI
- HbA1c in 2010, Part X
- What's the Q of D? Vitamin D Performance Requirements
- Quality Requirements: The Debate heats up!
- HbA1c for screening and diagnosis of diabetes?
- Need for a System of Quality Standards
- Why Not Evidence-Based Method Specifications?
- Good Data Wanted - Bad Data Should Not Apply (The STARD Initiative)
- "The Truth, the Whole Truth, and Nothing but the Truth"
- Open Letter to CLSI
- What is the Laboratory's Core Competency?
- Good Laboratory Practices for Statistical QC, Part I:
- Good Laboratory Practices for Statistical QC, Part II:
- Method Validation
- QC Design
- Is this the End of QC as we know it? And end of EQA and PT, too?
- What if the Frequency of Changing QC is Zero?
- Establishing Appropriate Risk-Based QC Frequency
- Total Allowable Error and the Brain to Brain Loop
- We need more data, more data, and more data
- Assuring Quality through Total Quality Management
- Quality Goals, Requirements, and Specifications
- Quality by Design
- Tools and Technology for QC Planning
- Mapping the Road to Analytical Quality
- Principles of QC Planning for Immunoassays
- From Rules and Tools to Technology and Training
- Errors in Reasoning about Laboratory Errors
- $aving the Cost$ of Poor Quality
- The Meaning and Application of Total Error
- Errors before the Laboratory
- Personal
- Quality in an Era of Untruth
- 2019: New Year, New Errors, and New Goals
- Erna Lenters-Westra: 2018 Westgard Award Winner
- Looking back, Thinking ahead, Making Choices
- Laying the Foundation for the next stage of Quality
- The Journey, Not the Destination
- Ring in the New Year, Please
- March Madness: Out-of-control in North Dakota
- It's an Honor: Personal Reflections on being a Teacher
- Giving Thanks for 2003: Some Observations
- Bah, Humbug! Or, how I learned to stop worrying and love EQC
- QC: Not just a technicality!
- 100,000 miles to Quality: 2005 in Review
- Quality Contradictions: Hopeful Healthcare in a Fearful Society
- Rumors of my Retirement are somewhat exaggerated...
- Thank You...
- Westgard Web: Why We Write
- Global and Local Imperatives for US Healthcare
- Truthful claims may not be enough
- Announcement of 2003 NACB Alvin Dubin award
- Maryland General
- Blowing the Whistle
- Part I. Cracks in the Healthcare Quality System?
- Part II. Facts of the Maryland General Healthcare Scandal
- Part III. Broken Windows at Maryland General Hospital
- Part IV. Inadequate Inspections
- Part V: A Few Bad Apples or the Tip of the Iceberg?
- Unannounced Inspections: Unlikely to Improve Quality
- The GAO Report on CMS - it's out
- The GAO Report Recommmendations: The good, the bad, and the irrelevant
- The GAO Report Recommmendations: The Regulators, Accreditors and Inspectors Respond
- Links
- Links to Holland 2010
- Links to Latin America 2010
- Links to Russia
- Links to Argentina and Chile
- Links to India, Part I: Best QC Practices and "Westgard Rules"
- Links to India, Part II: Clinical Quality and Analytical Quality Control
- Links to Argentina
- Links to Spain
- Links to South Africa
- Spotting Quality Internationally: The Antwerp Meetings
- ISO
- Uncertainty in How to Calculate Measurement Uncertainty: Different approaches for incorporating effects of clinically significant bias
- Internal audits based on ISO 19011 good practices for medical laboratories fulfilling ISO 15189
- Case studies of metrological verification of measuring equipment
- ISO 10012:2003 Measurement management systems
- MU Survey 2015: The countries
- MU Survey 2015: The US Results
- MU Survey 2015: The Global Results
- MU Survey 2015: US Labs Speak Out About Uncertainty
- MU Survey 2015: Labs Speak Out About Uncertainty
- What's New? Labs must MU
- Update on Measurement Uncertainty: CLSI C51A
- To Be Uncertain or In Error?
- ISO这么说:建议供验证使用r QC
- Quality Management - the Gospel according to ISO
- Truthful Guidance about Trueness, Uncertainty and Quality
- W.o.W., part I: Total Error vs. Trueness and Measurement Uncertainty
- W.o.W., part II: Concepts and Terminology
- W.o.W, part III: Intended Applications and Customers
- W.o.W. part IV: The Quality of Glycated Hemoglobin (Ghb)
- Housekeeping
- Free Membership (It's Free)
- The New Westgard Web
- Education and Training in Analytical Quality Management, Part One: Developing A "Lesson-Base"
- Quality and Commerce
- Education and Training in Analytical Quality Management, Part Two: Developing Internet Courses
- Education and Training in Analytical Quality Management, Part III: Basic QC Training
- Education and Training in Analytical Quality Management, Part Four: Internet Tools for QC Training
- WQC Y2K: Plans, Priorities, and Predicaments
- Quality: "I think I get it now!"
- High Reliablility
- CLIA
- 2019: CLIA proposed changes to PT acceptable limits
- What went Wrong with CLIA
- EQC = Eliminated QC
- CLIA QC Clearance Postponed Again & Again & Again & Again
- Final5 CLIA Rule 1/24/03
- CLIA QC and Q-less Compliance
- Testing Equivalent Quality: A Better Way
- Final Rule vs Final Word on Quality
- Quality versus the “No Lab Left Behind” Program
- Equivocal QC: Coming Soon to a Laboratory Near You
- EQC, AQC, and FDA QC Clearance: From control to compliance; from compliant to complicit
- 2008: Update on "Alternative QC"
- Basic QC Practices
- IFCC Global Survey of QC Standards and Practices
- Accentuating the Positive controls for COVID19
- QC 2018: The Truth Standard for Laboratory Testing Still Applies
- A New Look at Italian Error Rates
- A look at pre-analytical error rates, 2014
- Would you drive your car the way you run your QC?
- Re-emerging Issues in QC Today
- Is QC Quality Compromised?
- QC Past, Present and Future
- The QC we really do
- Putting Quality into Quality Control
- QC - "Back to Basics"
- Repeated, Repeated, Got Lucky!
- "But...is it really out?" Doing the Wrong QC Wrong
- Guest Essay
- Are we there yet? - COVID19 and the lab, 18 months later.
- Erna Lenters-Westra wins the Westgard Award
- In Memoriam: Elsa F. Quam, MT (ASCP)
- Covid-19 Testing: Maintaining Quality in a State of Emergency
- Key Facts in Covid-19 Testing
- Rilibak: Quality Goals the German way
- The Rong Regulation: Conflicts between NABL 112, CLSI EP23, and ISO 15189
- CLSI EP15-A3:精度和大霸王的验证tion of bias
- Empower IVD Globe Meeting Report
- QC-Dependent Risk Reduction
- Questions on the BioDatabase 2014
- Biologic Variation Database, the 2014 Update
- Dr David Burnett's new book on ISO 15189
- Invitation for Patient Percentile Monitoring
- In Favor of "Full QC"
- Using Allowable Total Error in Assay Migration
- Prepare for Inspection
- Frequently-Asked-Questions on Reference Intervals and Biological Variation
- Hitchhiker's Guide to Measurement Uncertainty (MU) in Clinical Laboratories
- Biologic Variation Database, the 2012 update
- Managing Quality in Networked Laboratories
- Dietmar Stockl, QC Reality Check, Part Five
- Saving money by applying TEa and Six Sigma for internal QC.
- Dietmar Stockl, QC Reality Check, Part Four
- Dietmar Stockl, QC Reality Check, Part Three
- Dietmar Stockl, QC Reality Check, Parts One and Two
- Interpretation of Differences in Serial Troponin Results
- Upgrading Quality Control in Molecular Diagnostics
- Stability Testing and CLSI EP25-A
- Biologic Variation Database, the 2010 update
- Rilibak: Quality Goals the German way
- Are "Scientific Statements" the Scientific Truth?
- Sysmex Perspective on Sigma-metrics
- Time to engage in measurement uncertainty
- Quality of Proficiency Testing
- When Quality depends on the company you keep
- Waiting for the FDA
- Quality Requirements for Veterinary Labs
- Understanding Quality
- Approaches to Clinical Laboratory Utilization Art Eggert
- Tips on Managing the Quality of Immunoassays
- Defect Rates, Quality and Productivity
- What's New With CLIA'88, JCAHO & CAP
- European Approaches to Analytical Goal-Setting
- QC - The Regulations
- TQM for Labs: A European point of view
- Cost-Effective QC for Chemistry and Coagulation
- MV - The Regulations
- Biological Variation Data for setting Quality Specifications
- QC Validation in Veterinary Laboratories
- Report of the Norwegian EQA Validator Workshop
- Trueness and Uncertainty
- Good Laboratory Practice versus CLIA
- Biologic Variation and Desirable Specifications for QC
- CLS: Victims of our own success?
- Biologic Variation: Principles and Practice
- Pre-, Post- & Analytical Errors
- Biodatabase Update 2001
- Quality Requirements Update 2002
- Are Scientific Statements the Scientific Truth?
- Is GUM injurious? - Or just superfluous?
- It's not Rocket Science
- Biological / Desirable Specs for QC, 2004 update
- The latest on Reference Values and Reference Intervals
- The Nordic Reference Interval Project 2000 (NORIP)
- The Quality in the Spotlight Conference
- Quality Management Cocktail ISO, Lean, and Six Sigma
- th是什么e Risks of Risk Management?
- Biologic Variation and Desirable Specifications for QC, 2006 Update
- Multisite Validation that “Westgard Rules” are cost-efficient and effective
- Quality Goal Index
- Frequency of QC - Implications for Patient Safety
- Biological Variation and Desirable Specifications for QC, 2008 update
- The Skinny on QC Are Laboratory Quality Requirements "Lean"?
- Trends
- Is the future of laboratory AI Automating Inaccuracy?
- AACC, A-u Revoir, CC you later
- 让我们now praise famous laboratory professionals
- Of Milestones, Maturing, and Making Progress
- Top Ten Findings of the Global QC Survey
- Misleading Comparisons, Minimal Review, Mars Moving Average Paper
- Strange Victory
- 2020: A Terrible Year with Tremendous Accomplishments
- Trying your patience while trying out Patient-Based QC
- Untruth and Consequences
- Corriendo una maratón: Por alcanzar la calidad en la crisis de la COVID-19
- This is Not a Test
- Sprinting into a Marathon: Striving for Quality in the Covid19 Crisis
- Three Books to make you Think Twice
- LabQuality Days 2019: Reinventing Quality. Reimagining Control
- The 17 Signs of a Struggling (Losing) Laboratory
- Bad Blood for Theranos: A book and Conference Review
- Avoiding the Anguish of Ill-Advised Automation
- Lured by the Low Bid? Labs need to Look before they Leap
- Quexit?, TE-xit? or IQCP-xit?
- Have you been Theranosed? Or are you Theranosing?
- 2016 Westgard Award: Linda Thienpont Pharm, Ph.D.
- Quality in the Spotlight: An Antwerp Accord?
- The Top 5-and-a-half Best LabSafeQuality CompareGrades
- Mini-Review of Milan Meeting
- New Year, New Goals, New Risks
- QC for the Future, Six Years Later
- CLSI EP22: In Memorium
- AACC 2009: More interest in quality, but not QC
- A Hopeful Year 2009
- Trends in Quality Management: Utilization and Outcomes
- Future Directions in Quality Control
- The Myth of Medical Decision Limits
- QC 2000: What changes are needed?
- The FDA-Abbott Consent Decree
- Sage Advice about New Approaches to Quality Control
- Who will care for quality tomorrow?
- Quality is Job 1 when the rubber meets the road
- 2001: Year of the Odyssey
- Has Quality been "Enronned"?
- Cooking the books: Does it happen in the laboratory?
- A momentous happening - A New Way to do QC!
- 2004 JCAHO Patient Safety Goals
- Taking Autoverification to the Next Level – up or down?
- Think straight, Talk straight
- Connecting the Dots to Find Common Causes
- Vioxx and Vaccines, Values and Votes
- Quality Indicators and Benchmarks
- Troubles with Tracking Tests
- CLSI faces the Challenge of Quality
- The Health of US Healthcare
- Tools
- Six Sigma
- SoSS? Scared of Six Sigma?
- Guidance for Improving Statistical QC Frequency Strategy for Multitest Analyzers
- The Five Bests of Six Sigma: A Radical Approach to Choosing Instruments
- Six Sigma Quality and Desirable Laboratory Precision
- Six Sigma and Requisite Laboratory QC
- Six Sigma Staffing Strategies
- Signs of Six Sigma
- Statistics
- Quality of Laboratory Testing
- Part I: Myths and Metrics
- Part II: Touchstone Test Methodology
- Part III: The Quality of Cholesterol Testing
- Part IV: The Quality of Glucose Testing
- Part V: The Quality of Calcium Testing
- 第六部分:迷奸的质量测试
- Part VII: The Quality of PSA Testing
- Part VIII: The Quality of Coag Testing
- Part IX: Variability of survey estimates
- Risk Management
- Risk-Based QC Plans: Clinical Chemistry Journal Club Comments
- IQCP: Does the P stand for Placebo?
- Thinking Fast and Slow about Risk QC
- Talking and tackling Risk-Based QC Plans
- Will Bad Risk drive out Good QC?
- Is Risk Analysis Reliable?
- The Right QC: "Tell me what you heard"
- EQC is out and QC Plans are in
- Identifying Failure Modes
- The Detectability Debate
- Why Six Sigma Risk Analysis?
- Failure Modes of Risk Assessment
- How is Risk Assessed?
- The Risk Management Process
- First do no harm
- About Us
- Interviews
- Sunway faces down the virus in Malaysia
- Three Waves of SARS-COV-2 at Winchester Medical Center
- The View from St. Petersburg: Helix Laboratories faces the challenge of COVID19
- Multicare Health System: The COVID19 pandemic through the eyes of an 8-lab system
- Cedars-Sinai Medical Center and the Early COVID19 waves
- Egypt: Challenges in Clinical Chemistry QC Practices
- Second City, First Wave: Rush University Medical Center
- In the center of the (US) COVID-19 storm: Interview with Dr. Sam Reichberg
- Interview on Biologic Variation Goals
- Dr. Carmen Ricos and the Biodatabase
- Paul Epner and Labs are Vital
- Interview with a Black Belt
- Interview with a Black Belt: Charleston Area Medical Center & GE
- Interview: Process Metrics "Un-belted" at Covance Central Laboratory Services
- Intro to EP 15 - wth R. Neill Carey, Ph.D.
- Do it Yourself Lean in the Lab
- CAP on Proficiency Testing
- Dr. Jan Krouwer on Risk Management
- What we can learn from World Class Methods
- ISO: Coming to a Laboratory Near You
- Basic QC Practices
- Secrets of Screening QC
- Sigma-metrics of Lab Processes, 2012
- Error Rates in the Total Testing Process
- Pre-Analytical and Post-Analytical QC
- QC Practices for Molecular Testing
- QC - Proficiency Testing, EQC, and Peer Groups
- QC - The Idea
- QC: The Levey-Jennings Control Chart
- QC - The Materials
- QC - The Calculations
- QC - The Multirule Interpretation
- QC: Levey-Jennings: Answers
- QC Calculation Problem Set
- QC Calculation Problem Set - Answers
- Quality Management
- What about Bias?
- Quality Planning Models - The Math
- What is QC Validator?
- QC - The Planning Process
- Power Function Graphs
- Critical-Error Graphs
- OPSpecs Charts
- Quality Planning Models
- Total Quality Control Strategies
- Normalized OPSpecs Charts
- QC Selection Grids
- 自动QC选择引擎
- Area Under a Table
- Assessing the time to rejection for QC procedures
- Advanced Quality Management / Six Sigma
- Secrets of Better Sigma Metrics, Part Two
- 更好的秘密σ指标,第一部分
- 2018 Global Six Sigma Survey Results
- Seven Tips to Better Sigma in '17
- When manufacturers make mistakes
- Quality Goals, Systems, and Specifications
- Surpassing Six Sigma
- Translating Method Validation Data into Sigma Metrics
- 六西格玛基础:过程改进目标和measurements
- Thinking about Three Sigma
- Six Sigma Basics: Outcome Measurement of Process Performance
- Six Sigma: Quality Design and Control Processes
- A Six Sigma Design Tool
- Six Sigma Design and Error Budgets
- From Precision Claims to Six Sigma Estimates
- "Westgard Rules"
- Patient Safety Concepts
- High Reliability
- ISO
- ISO 15189:2012 Medical laboratories - Requirements for quality and competence
- ISO 9001:2015 Quality Management Systems Requirements
- ISO-1: Basics on ISO Standards
- ISO-2: ISO 9001:2000 and Quality Management Systems
- ISO-3: The 15189:2003 Standard
- ISO-4: ISO 14001:2004 and Environmental Management
- ISO 15189 QSE 5.6: Assuring the Quality of Examination Procedures
- Glossary of ISO Terms
- Basic Planning for Quality
- QP 1: A Wake-up call for Quality Management
- QP 2: Assuring Quality Through Total Quality Management
- QP 3: Complying with Regulations, Standards, and Practice Guidelines
- QP 4: Devising a Practical Process
- QP 5: Defining Quality Requirements
- QP-6: Adopting the OPSpecs Chart as Your Planning Tool
- QP-7: Formulating a Total Quality Control Strategy
- QP-8: Implementing a manual process using Normalized OPSpecs charts
- QP-9: Practice makes Proficient
- QP-10: Automated Chemistry Applications
- QP-11: Blood Gas Applications
- QP-12: Immunoassay Applications
- QP-13: Coagulation Applications
- QP-14: What's wrong with statistical quality control?
- QP-15: Frequently-Asked-Questions about Quality Planning
- Basic Method Validation
- True or False? You can validate a qualitative method
- Probit Analysis, Part Two
- Una revisión del valor predictivo de las pruebas de laboratorio
- Calculadora web para tabla de contingencia 2x2
- Probit Analysis, Part One
- COVID-19 Serology Testing Strategy: Confirm Positive Results
- A Review of Predictive Value of Laboratory Tests
- Estimating Clinical Agreement for a Qualitative Test: A Web Calculator for 2x2 Contingency Table
- Calibration Verification Criteria for Acceptable Performance
- Determining Inaccuracy
- Selecting a Method to Validate
- The Experimental Plan for Method Validation
- The Replication Experiment
- The Comparison of Methods Experiment
- The Data Analysis Tool Kit
- The Decision On Method Performance
- The Linearity or Reportable Range Experiment
- Interference and Recovery Experiments
- 瞿的管理ality
- The Detection Limit Experiment
- Reference Interval Transference
- Basic validation of qualitative tests
- Z Stats / Basic Statistics
- Z-1: Aligning Attitudes Through Purpose
- Z-2: An Organizer Of Statistical Terms (Part I)
- Z-3: An Organizer Of Statistical Terms (Part II)
- Z-4: Mean, Standard Deviation, And Coefficient Of Variation
- Z-5: Sum of Squares, Variance, and the Standard Error of the Mean
- Z-6: Probability and the Standard Normal Distribution
- Z-7: Hypothesis Testing, Tests of Significance, and Confidence Intervals
- Z-8: Two-Sample and Directional Hypothesis Testing
- Z-9: Truth or Consequences for a Statistical Test of Significance
- Z-10: ANOVA
- Z-11: Confidence Intervals
- Z-12: Correlation and Simple Least Squares Regression
- Z-13: The Least Squares Regression Model
- Z-14: Estimating Analytical Errors Using Regression Statistics
- Questions
- Questions on QC during Lab Week 23
- Questions from "Chasing the Mean" Zoom
- Questions from the "Toeing the Line" Zoom
- Questioning Six Sigma metrics for the Laboratory
- Questions from the Sigma Stronger webinar
- Questions from the 2021 Quality in the Spotlight Masterclass
- Questions and Answers from the 40th Birthday of Westgard Rules
- Questions from Breaking all the Rules
- When your QC is a flat line
- Questions about QC for Multiple Instruments and Multiple Labs
- 20 Questions on Hematology QC
- Questions on QC Frequency
- QC Planning for a Calcium Method
- FAQ's of QC Validator 2.0
- FAQ's about Multirule QC
- FAQ's about Power Function and Critical-Error Graphs
- FAQ's about OPSpecs Charts
- Multirules and QC Validator
- FAQ's on CLIA’88, JCAHO and CAP Requirements
- FAQ's about controls and out-of-controls
- FAQ's on Trends, R4s rules and more
- FAQ's on Method Validation
- Method Validation: Class Questions
- FAQ's on N, runs, control limits
- AACC Expert Access Questions & Answers - Six Sigma
- Quintiles and Quality: QC for hs-CRP
- Ten Ways to do the Wrong QC Wrong
- Uncategorized