| Title | A case of hyperkalaemia associated with hypocalcaemia. | | Author(s) | Stevens RJ, Laina V, Wong CK, Coulson CE | | Institution | Dr R Stevens, Department of Physiology, Human Anatomy and Genetics, University of Oxford, Medical Sciences Teaching Centre, South Parks Road, Oxford, OX1 3PL, UK; rjgs@doctors.org.uk. | | Source | Emerg Med J 2008 Jun; 25(6):379-80. | | Abstract | An 84-year-old woman presented with lethargy and anorexia. Although routine biochemistry demonstrated mild hyponatraemia, moderate hyperkalaemia and severe hypocalcaemia, the patient did not demonstrate the usual symptoms of hypocalcaemia. An electrocardiogram did not demonstrate evidence of hyperkalaemia or hypocalcaemia. Repeated biochemistry confirmed hyponatraemia but that was associated with hypokalaemia and normocalcaemia. Initial management involved correction of the hyponatraemia and hypokalaemia with appropriate intravenous fluids. If serum biochemistry demonstrates hyperkalaemia in association with hypocalcaemia, pseudohyperkalaemia and pseudohypocalcaemia caused by contamination with potassium ethylenediaminetetraacetic acid should always be considered. This can be confirmed by repeating biochemistry, but ensuring the serum gel tube is drawn first when taking multiple blood samples to avoid this contamination. | | Language | eng | | Pub Type(s) | Journal Article
| | PubMed ID | 18499832 |
|
