..., the first question should be whether it is an artifact. Spurious electrolyte disorders (pseudohyponatremia, pseudohypernatremia, pseudohypokalemia, pseudohyperkalemia, pseudohypomagnesemia, pseudohypophosphatemia, pseudohyperphosphatemia, pseudohypocalcemia and pseudohypercalcemia) are not infrequently...

... observed a case of pseudohyperkalemia in a patient with chronic lymphocytic leukemia which was unrelated to both of these mechanisms, and was instead related to a common mode of drawing blood, i.e. with vacuum tubes. © 1995 S. Karger AG, Basel 1995 Copyright / Drug Dosage / Disclaimer Copyright: All...

...Onyekachi Ifudu; Mariana S. Markell; Eli A. Friedman Pseudohyperkalemia, defined as serum to plasma potassium difference of more than 0.4 mmol/l, occurs when platelets, leukocytes or erythrocytes release intracellular potassium in vitro, leading to falsely elevated serum values. Pseudohyperkalemia...