title: Hyperkalemia-like ECG changes simulating acute myocardial infarction in a patient with hypokalemia undergoing potassium replacement.
abstract: A pseudo-infarctional ECG pattern, previously noted to occur rarely in association with hyperkalemia, was observed in a patient with severe hypokalemia in the course of K+ replacement but while she was still hypokalemic. It is inferred that this puzzling ECG feature reflected a reduction of intracellular/extracellular [K+] ratio in a patient with decreased intracellular K+ concentration undergoing rapid K+ repletion.
authors.affiliation: Department of Medicine, Mount Sinai School of Medicine, City University of New York.
authors.forename: J E
authors.initials: JE
authors.lastname: Madias
authors.forename: N E
authors.initials: NE
authors.lastname: Madias
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D004562:Electrocardiography; D005110:Extracellular Space / Q000378:metabolism; D005260:Female; D006801:Humans; D007008:Hypokalemia / Q000188:drug therapy / Q000378:metabolism / Q000503:physiopathology*; D007424:Intracellular Fluid / Q000378:metabolism; D009203:Myocardial Infarction / Q000175:diagnosis*; D011188:Potassium / Q000378:metabolism; D011189:Potassium Chloride / Q000627:therapeutic use*
chemical_list: D011189:Potassium Chloride; D011188:Potassium