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Answers on p 731.
A 60 year old man presented to the emergency department with slurring of speech and generalised weakness associated with cramps affecting his hands. He had no medical illnesses apart from a left sided cataract removed a year ago. A 12 lead electrocardiogram was performed.
- What is the abnormality on the 12 lead electrocardiogram (fig 1)?
- What are the possible causes of the abnormality of the electrocardiogram?
- What is the likely diagnosis?