Code 100 signals which type of emergency?

• A. Active Shooter
• B. Power Outage
• C. Medical Emergency
• D. Evacuation

Answer: (C)

Code 100 is used to signal a medical emergency. In many organizations, numbers are used to communicate quickly and discreetly about the type of urgent situation. A medical emergency covers events where someone needs immediate medical assessment or treatment—things like someone who is unresponsive, not breathing, having chest pain, or showing signs of a stroke or severe allergic reaction. When Code 100 is announced, trained responders rush to the scene, provide life-saving care, and summon additional help if needed, while others clear the area to allow responders to work. This differs from other codes that refer to threats or hazards such as an active shooter, a power outage, or an evacuation, which involve different response actions.