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Why do values or reference ranges vary from lab to lab?

April 26, 2017lab ranges Reference values

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Why do values or reference ranges vary from lab to lab?

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Labs may use different types of equipment and tests, and sometimes they set their own reference ranges. Your lab report will contain the reference ranges your lab uses. Do not compare results from different labs. Only a handful of tests, such as cholesterol and blood sugar , have standardized reference ranges that all labs use. This means that no matter where these tests are done, the results are compared to the same reference ranges.