| 3. Pre-Analytic Variables |
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3.1 Apply an understanding of the impact of how conditions of sample collection (e.g. Sample type, appropriate anticoagulant, venipuncture procedure, sample time, sequence of sampling and contamination issues, tube volume, effects of hematocrit) and transport (temperature, time, activation) influences laboratory tests.
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3.2 Apply understanding of how factors that impact sample preparation and storage prior to analysis (e.g. Stability of analyte, centrifugation, impact of temperature on storage) influence laboratory tests.
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3.3 Apply and understanding of how patient factors that influence laboratory tests (e.g. age, gender, race, blood group, pregnancy, fasting, exercise, storage time, impact of/effect of medication, time from event such as deep vein thrombosis or bleeding)
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