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Author: Sam Killian, MD. Educational Pearls: Computer interpretation has a very good negative predictive value of a normal EKG (99%). Of 222 interpreted as "normal," 13 were deemed to have some abnormality by a cardiologist in a recent study. Those 13 EKG's were read by 2 ER docs, and only 1 missed interpretation warranted a move from triage to a bed. References Katie E. Hughes KE., Scott M. Lewis SM., Laurence Katz and Jonathan Jones Safety of Computer Interpretation of Normal Triage Electrocardiograms. 2017. Academic Emergency Medicine 24(1):120-124. http://onlinelibrary.wiley.com/doi/10.1111/acem.13067/full.