EKG of the month. Torsades de pointes.
D004562:Electrocardiography; D005260:Female; D006801:Humans; D007008:Hypokalemia / Q000175:diagnosis*; D008275:Magnesium Deficiency / Q000175:diagnosis*; D008875:Middle Aged; D013610:Tachycardia / Q000175:diagnosis*