Ruling Out a Myocardial Infarction Safely in 30 Minutes

This Research to Practice column assists to provide emergency advanced practice registered nurses an exploration of current evidence to establish implications for practice change within emergency care settings. The article, "Rapid Rule-Out of Myocardial Infarction After 30 Minutes as an Alternative to 1 Hour: The RACING-MI Cohort Study" by Bang et al. (2022), seeks to examine whether non-ST-segment elevation myocardial infarction identified on an electrocardiogram can be safely ruled out among a population of low-risk patients who present to the emergency department (ED) with undifferentiated acute chest pain. The study uses an accelerated 30-min testing algorithm of high-sensitivity troponin I markers as opposed to a traditional 1-hr high-sensitivity troponin I testing algorithm. The study results are presented to understand the factors of managing myocardial infarction (MI) and reducing patient length of stay surrounding MI care among ED providers at an emergency care center.