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What is wrong with shipping whole blood as a sample to a central laboratory for PTH testing?

April 26, 2017blood laboratory Pth sample shipping Testing wrong

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What is wrong with shipping whole blood as a sample to a central laboratory for PTH testing?

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PTH is a labile hormone with a half-life in circulation of less than five minutes. Publications have documented that EDTA-preserved whole blood does not give the same PTH results as freshly centrifuged and frozen plasma. Therefore, freshly centrifuged and frozen EDTA plasma is the sample that Scantibodies uses for generating PTH assay values. (ref. Omar H, et.