ImageTrend Short Report: Prehospital Response to Allergic Reactions

By Macall Leslie Salewon, MPH, Epidemiologist

Background

Allergic reactions can escalate rapidly and become potentially life-threatening in the case of anaphylaxis, making early recognition and treatment critical in the prehospital setting. While severe allergic reactions account for tens of thousands of 9-1-1 responses each year, less is known about how these incidents present and are managed before patients arrive at the hospital. This month’s short report explores national EMS response trends for allergic reactions, including anaphylaxis, providing a closer look at where these calls occur, who they affect, and how clinicians respond in the field.

Inside the Report

This report examines the scope of allergic reaction-related 9-1-1 responses across the United States, including demographic trends, seasonal patterns, incident locations, and patient acuity. Learn how often anaphylaxis is identified, the frequency of epinephrine administration, and how transport and refusal rates differ between allergic reactions and severe cases. The report also explores common symptoms and response characteristics to better understand the challenges EMS clinicians face when managing these time-sensitive emergencies  

Download the full report for data-driven insights that can help EMS leaders strengthen clinician education, support early recognition of severe allergic reactions, and improve preparedness for anaphylaxis response.