What type of agent is considered a choking agent?

A choking agent is correctly identified as a type of respiratory agent. These compounds primarily impact the respiratory system and can cause damage to the lung tissue, making it difficult for individuals to breathe. Choking agents typically lead to symptoms such as coughing, choking, and even suffocation in severe cases. Classic examples include chlorine and phosgene, both of which are toxic gases that can cause immediate respiratory distress.

In the context of chemical warfare and terrorism, recognizing choking agents is critical for emergency responders. These agents can be released in a crowded setting, causing panic and complicating evacuation and medical treatment efforts. Understanding the specific effects of these agents enables responders to implement appropriate protocols to protect themselves and the public during an incident involving such substances.