The Plain English Guide To Blood Tests
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The Plain English Guide To Blood Tests
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According to official NHS patient guidance and Mayo Clinic clinical laboratory standards, blood results are read using "reference ranges," which are basically averages of how healthy people score for a particular reading. A single reading that is slightly out of a reference range does not necessarily mean that something is wrong, since hydration, recent meals, or even exercise can transiently alter blood test results. This handy guide decodes 12 key blood markers, helping to explain just what your lab report really means.