Man’s ‘heart attack’ was really side effect from swallowed battery

When a man arrived at the emergency room, it looked to doctors like he was having a heart attack. But that was a false alarm: The man had actually swallowed a battery that messed with his electrocardiogram (EKG), a measure of the heart’s electrical activity, according to a new report of the case. 

Once doctors removed the battery, the EKG returned to normal, according to the report, published Monday (Nov. 23) in the journal Annals of Internal Medicine.

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