Hydrogen cyanide is an example of which type of casualty agent?

Hydrogen cyanide is classified as a blood agent. This type of agent acts on the bloodstream by preventing the proper utilization of oxygen at the cellular level. When inhaled or absorbed, hydrogen cyanide interferes with cellular respiration, leading to asphyxiation and cellular damage due to a lack of oxygen. The effect of hydrogen cyanide on the body's ability to transport and use oxygen is critical to understanding its classification as a blood agent, distinguishing it from other types of chemical warfare agents that affect the respiratory system, nervous system, or skin differently.