Rifkin Stephen I
Division of Nephrology, College of Medicine, University of South Florida, Tampa, FL 33606, USA.
Int J Nephrol. 2011;2011:759749. doi: 10.4061/2011/759749. Epub 2011 Mar 23.
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.
假性高钾血症偶尔会发生在白细胞极度增多的患者中。白细胞脆性增加以及机械应力被认为是其病因。血清和血浆钾水平均与假性高钾血症有关。全血钾测定通常能证实正确的诊断。早期诊断这种情况很重要,这样患者就不会接受不恰当的治疗。本文介绍了两名慢性淋巴细胞白血病伴白细胞极度增多的患者,其中一名患有假性高钾血症,另一名可能患有假性高钾血症,并讨论了诊断方面的考虑因素。