Not all unexplained hyperkalaemia is pseudohyperkalaemia

Dimeski, Goce, Dastagir, Nizam, Kruger, Peter S. and Venkatesh, Bala (2009) Not all unexplained hyperkalaemia is pseudohyperkalaemia. Critical Care and Resuscitation, 11 3: 219-221.


Author Dimeski, Goce
Dastagir, Nizam
Kruger, Peter S.
Venkatesh, Bala
Title Not all unexplained hyperkalaemia is pseudohyperkalaemia
Journal name Critical Care and Resuscitation   Check publisher's open access policy
ISSN 1441-2772
Publication date 2009-09-01
Sub-type Article (original research)
Volume 11
Issue 3
Start page 219
End page 221
Total pages 3
Editor Peter Van Heerden
Place of publication Australia
Publisher Australasian Academy of Critical Care Medicine
Language eng
Subject 920101 Blood Disorders
110316 Pathology (excl. Oral Pathology)
CX
Abstract We describe a patient with hyperkalaemia due to localised rhabdomyolysis caused by upper limb ischaemia. Initially, this was erroneously classified as pseudohyperkalaemia, as an earlier measurement of potassium concentration in a venous sample from the contralateral arm was within the reference range. Detailed scrutiny of pathology test results from a second sample by laboratory staff revealed high concentrations of creatine kinase and lactate dehydrogenase, raising the possibility of rhabdomyolysis caused by localised ischaemia. This led clinical staff to reassess the patient, confirming a local arterial occlusion in the arm. This was successfully treated with embolectomy. This report highlights the importance of systematic scrutiny of pathology results, especially when they do not fit the “clinical picture”, and the crucial role of the laboratory in Crit Care Resusc 2009; 11: 219–221 aiding the clinician.
Keyword Hyperkalaemia
Ischaemia
Pseudohyperkalaemia
Pathology
Q-Index Code CX
Q-Index Status Provisional Code

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Medicine Publications
 
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Created: Sat, 17 Apr 2010, 01:14:54 EST by Fiona Mactaggart on behalf of Medicine - Princess Alexandra Hospital