According to the START system of Triage, how would you prioritize a walking adult male with severe chest pain?

In the START (Simple Triage and Rapid Treatment) system used for triaging patients during mass casualty incidents, immediate priority is assigned to patients who demonstrate signs of severe medical conditions that could quickly become life-threatening. A walking adult male with severe chest pain indicates a potential acute cardiac event, such as a myocardial infarction (heart attack), which requires rapid intervention to prevent serious complications or death.

This patient, despite being able to walk, presents a condition that is often critical and might deteriorate quickly without treatment. The START triage system places a high value on patients exhibiting severe symptoms that could lead to rapid deterioration, which explains why this individual's severe chest pain would categorize him as needing immediate care. This priority aligns with the need to first address those whose conditions could escalate if not treated promptly, ensuring the best chance for survival.