LAUSR

The nature of medical emergencies places emergency physicians at risk for high levels of acute psychological stress (APS). Stress‐modifying techniques like visualization, breath control, and mental practice may help mitigate APS, but objective markers of stress are difficult to measure in the clinical setting. We explored the relationship between heart rate variability (HRV), a real‐time measure of autonomic arousal, and self‐reported APS among emergency medicine (EM) residents learning to intubate on actual patients.