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The Poor Lab's Guide
The Poor Lab's Guide

"Westgard Rules" and Levey-Jennings Charts Short Course


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ALP Targets

Can methods hit the Total Protein Target?

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Can any method hit the Alkaline Phosphatase (ALP) target?

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Basic Quality Management Systems

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Is your lab ready to move ahead?

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Taking a closer look at Lenters-Westra and Slingerland's study of POC HbA1c methods, let's go to the (Method Decision) graphs.

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Can any POC HbA1c devices hit the bull's-eye??

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pop quiz: what's an acceptable POC defect rate?

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Performance of a POC Chemistry Analyzer

Small point-of-care chemistry analyzers continue to enter the market. Is the latest model an acceptable substitute for core lab quality results?

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IQCP: Does the P stand for Placebo?

The momentum behind IQCP is accelerating. Companies are launching education initiatives, new software programs, and there are webinars, workshops, and online tutorials. But does anyone really understand what an IQCP is yet? Does anyone know what the P stands for? Problem? Plan? Placebo?

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Free Membership (It's Free)

Probably the feature users will like least about the new Westgard Web is membership. In order to access some articles on the website, you'll need to become a member and login when you visit the website. But membership is free and the benefits of membership outweigh the hassle.

Evaluation of 4 POC instruments

An analysis of 4 different point-of-care (POC) analyzers and one POC device for HbA1c, based on a study published in 2012. The focus of the study was to find practical POC devices that could support faster decision making for the country's large HIV population. The question is, do any POC devices provide adequate quality for that type of clinical care?

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Would your lab have caught this error?

For all its ubiquity in the lab, proper QC isn't easy. Even though every laboratory has to perform Quality Control, that hasn't made the task any simpler. It still relies on the right mean, the right SD, the right control limits, the right rules and numbers of control measurements, and the right interpretation of control data points. If you get one part of this system wrong, it can throw off the correct implementation. Here's an example that was recently published showing the difficulties and challenges of performing proper QC.

Westgard Sigma Rules

We've talked about Westgard Rules for decades, and we've talked about Six Sigma for years. So what happens when we try to talk about both at the same time? Westgard Sigma Rules

Biologic Variation Database, the 2014 Update

Celebrate 15 years of evidence-based quality goals! The 8th update of the biologic variation database, with updated specifications and new analytes for 2014.

Will Bad Risk drive out Good QC?

With the expiration date on EQC drawing ever closer, US labs still await the details about its replacement. While CLSI EP23 has been public for more than a year, and CMS has made press releases about the new IQCP (Individualized Quality Control Plans) and has announced the benefits of this new forthcoming policy, the actual regulatory language has yet to be released or described.

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Westgard Training
For those who seek to learn about "Westgard Rules", Quality Control, and other topics about Laboratory Quality Management, Westgard QC can provide the best training, either through books, online courses, or public or private workshops.

About this website

WESTGARD QC promotes the latest news, education, and tools in the quality control field. Our goal is to bring tools, technology and training into today's healthcare industry — by featuring QC lessons, QC case studies and frequent essays from leaders in the quality control area. This is also a reference source for quality requirements, including CLIA requirements for analytical quality. This website features the best explanation of the Multirule ("Westgard Rules") and how to use them. For laboratory and healthcare professionals looking for educational and reference material in the quality control field.




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