Two laboratories may use different reference ranges for what is considered normal and abnormal, making results from different labs difficult to compare.
Sources
- Lab Test Results Guide: What to Expect - WebMD (webmd.com)
- https://www.merckmanuals.com/professional/resources/normal-laboratory-values/laboratory-reference-ranges (merckmanuals.com)
- https://www.medlineplus.gov/lab-tests/how-to-understand-your-lab-results/ (medlineplus.gov)
- https://www.jabfm.org/content/38/1/174.full (jabfm.org)
- https://www.testing.com/articles/laboratory-test-reference-ranges/ (testing.com)
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