pseudohyperkalemia

(redirected from pseudohyperkalaemia)

pseu·do·hy·per·kal·e·mi·a

(sū'dō-hī'pĕr-kal-ē'mē-ă),
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 (that is, 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]

pseudohyperkalemia

[-hī′pərkəlē′mē·ə]
a laboratory artifact indicating an elevated blood potassium level caused by potassium released in vitro from cells in the blood sample.

pseudohyperkalemia

Lab medicine An in vitro phenomenon seen in megakaryocytic hyperplasia, thrombocytosis, leukocytosis, or myeloproliferative disease, where rapid clotting of blood releases potassium from RBCs Lab ↑ Serum K+, plasma K+ is normal. Cf Hyperkalemia.

pseu·do·hy·per·ka·le·mi·a

(sū'dō-hī'pĕr-kă-lē'mē-ă)
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. May be a consequence of disease (i.e., myeloproliferative disorders with marked leukocytosis or thrombocytosis) or result from an improper collection technique with in vitro hemolysis.
Synonym(s): pseudohyperkalaemia.
[pseudo + G. hyper, above + L. kalium, potassium, G. haima, blood]

pseudohyperkalemia

elevated levels of serum potassium resulting from an increased release from cells during clotting of the sample. Associated with thrombocytosis, extreme leukocytosis, or abnormal white or red blood cells.
References in periodicals archive ?
If severe hyperkalaemia is observed, despite the absence of reduced kidney function, pseudohyperkalaemia, an artefact due to haemolysis of the blood specimen, should be considered.
Pseudohyperkalaemia in the serum in reactive thrombocytosis and thrombocythemia.
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