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pseudohyperkalemia

Pronunciation: su'do-hi'per-kal-e'me-a

Definition: A spurious elevation of the serum concentration of potassium occurring when potassium is released in vitro from cells in a blood sample collected for a potassium measurement. This may be a consequence of disease (myeloproliferative disorders with marked leukocytosis or thrombocytosis) or as a result of improper collection technique with in vitro hemolysis.

[pseudo + G. hyper, above + L. kalium, potassium, G. haima, blood]

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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