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pseudohyperkalemia

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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
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.
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.
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Pre-analytical causes Prior to running a specimen for a potassium level, there are causes that can create a factitious or pseudohyperkalemia reading, it is important to recognize these factors.
A harmful banana? The purpose of this case study is to review the ... by Lazzari, Michael / Medical Laboratory Observer
In the absence of marked leukocytosis and thrombocythemia, pseudohyperkalemia is very unlikely.
Extreme hyperkalemia by Tran, H.A. / Southern Medical Journal
In the article, "Investigating elevated potassium values" (MLO, November 2006, page 24), little was presented to explain a case of pseudohyperkalemia that we experienced recently.
An opposite result by Medical Laboratory Observer
 
 
 
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