Do not just memorize Westgard rules; practice looking at a Levey-Jennings chart to identify systematic shifts or random errors.

Websites like LibreTexts, PubMed Central (PMC), and the Association for Diagnostics & Laboratory Medicine (ADLM) offer peer-reviewed, free-to-access clinical articles, manuals, and learning modules.

: Users frequently pair it with other "must-have" reviewers like Polansky or Bishop for comprehensive prep.

Measuring light absorption to determine analyte concentration.