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Int J Nephrol. 2011;2011:759749. doi: 10.4061/2011/759749. Epub 2011 Mar 23.

Pseudohyperkalemia in patients with chronic lymphocytic leukemia.

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  • Division of Nephrology, College of Medicine, University of South Florida, Tampa, FL 33606, USA.

Abstract

Pseudohyperkalemia occurs occasionally in patients with extreme leukocytosis. Increased white blood cell fragility coupled with mechanical stress is felt to be causal. Serum and plasma potassium levels have been both associated with pseudohyperkalemia. Whole blood potassium determination will usually verify the correct diagnosis. It is important to diagnose this condition early so that patients are not inappropriately treated. Two patients with chronic lymphocytic leukemia and extreme leukocytosis are presented, one with pseudohyperkalemia and one with probable pseudohyperkalemia, and diagnostic considerations are discussed.

PMID:
21603111
[PubMed]
PMCID:
PMC3097068
Free PMC Article
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