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  • Title: Reverse pseudohyperkalemia in heparin plasma samples from a patient with chronic lymphocytic leukemia.
    Author: Meng QH, Krahn J.
    Journal: Clin Biochem; 2011 Jun; 44(8-9):728-30. PubMed ID: 21406192.
    Abstract:
    OBJECTIVES: To investigate the spurious high potassium results in heparin plasma. DESIGN AND METHODS: Potassium values from heparin plasma, serum, and whole blood in a patient with chronic lymphocytic leukemia were determined and compared on chemistry and blood gas analyzers. RESULTS: Potassium levels were strikingly elevated in heparin plasma compared to serum or whole blood in which the potassium levels were surprisingly normal. CONCLUSIONS: The phenomenon of reverse pseudohyperkalemia should be publicized.
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