ArticleAcute medicine & surgery2014
Electrocardiogram findings of patients with serum potassium levels of nearly 10.0 mmol/L: a report of two cases.
Article in Acute medicine & surgery, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
casesIn Case 1, a 63-year-old woman was admitted with muscular weakness. She had hypertension, diabetes mellitus, and chronic renal failure on hemodialysis. She was taking a beta-blocker. Her pulse rate was 42 b.p.m. (irregular rhythm); serum potassium level was 9.8 mmol/L; electrocardiogram revealed widening of the QRS complex (0.256 s). In Case 2, a 59-year-old man was admitted with muscular weakness. He had hypertension and chronic renal failure, and was taking a renin-angiotensin-aldosterone system inhibitor. His pulse rate was 42 b.p.m. (irregular rhythm); serum potassium level was 10.1 mmol/L; electrocardiogram revealed widening of the QRS complex (0.180 s). OUTCOME: Life-threatening arrhythmia did not occur, and patients survived under appropriate treatment.
conclusionChronic renal failure, diabetes mellitus, or medications affecting extrarenal potassium homeostasis can produce a tolerance to hyperkalemia. This tolerance may help prevent life-threatening arrhythmia despite fatal levels of serum potassium.
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