COVID-19 in Seattle-Early lessons learned.

The coronavirus disease 2019 (COVID-19) pandemic has rapidly evolved and now dominates the attention and full efforts of the emergency medicine community, both domestic and abroad. Seattle is the site of the initial diagnosed COVID-19 cases and fatalities in the United States. We provide an overview of the system-level response of 6 Seattle emergency departments and the Washington state chapter of the American College of Emergency Physicians (ACEP) to the COVID-19 pandemic.

Advances in cardiac biomarkers.

The diagnostic and prognostic roles of new and established cardiac biomarkers are continually changing. This update article discusses clinical diagnosis as a framework for directing biomarker testing. Markers are reviewed in the settings of acute coronary syndromes, decompensated heart failure, and noncardiac clinical scenarios.