Tricia Barry MT(ASCP) gives us another valuable article on the basics of quality control, explaining the who, what, when and how of recording your QC history -- plus the why we need to do it. It turns out your records are important - they provide a voice for the method. If you listen closely, you'll understand why things are out-of-control sometimes.

Those "Westgard rules" can be confusing. How do you use them? This lesson combines basic QC theory and practice to show you how. Dr. Westgard walks you through a Levey-Jennings chart day by day, plotting the control data and pointing out which run violates which rule. See how the multirule QC should be done (and find out if you've been doing it right yourself).