Choking agents like ___________ attack the lungs causing tissue damage

Choking agents like ___________ attack the lungs causing tissue damage

• A. Phosgene
• B. Chlorine
• C. Ammonia
• D. Hydrogen chloride

Answer: (A)

Choking agents are gases that primarily damage lung tissue and disrupt the air-blood barrier, leading to edema and impaired gas exchange. Phosgene is a classic choking agent because it reacts with moisture in the lungs to form acidic products that injure the alveolar-capillary membranes. This injury allows fluid to flood the air spaces, producing pulmonary edema and serious breathing difficulty. Symptoms can be delayed after exposure, which makes phosgene particularly dangerous. The other gases listed act mainly as irritants to the eyes, nose, and upper airways, causing immediate coughing and irritation rather than the targeted lung tissue damage and edema seen with choking agents.

Choking agents are gases that primarily damage lung tissue and disrupt the air-blood barrier, leading to edema and impaired gas exchange. Phosgene is a classic choking agent because it reacts with moisture in the lungs to form acidic products that injure the alveolar-capillary membranes. This injury allows fluid to flood the air spaces, producing pulmonary edema and serious breathing difficulty. Symptoms can be delayed after exposure, which makes phosgene particularly dangerous.

The other gases listed act mainly as irritants to the eyes, nose, and upper airways, causing immediate coughing and irritation rather than the targeted lung tissue damage and edema seen with choking agents.