injuries and poisoning
Systemic Asphyxiant Chemical Warfare Agents
Diagnosis of Systemic Asphyxiant Injuries
A doctor's evaluation Severely affected people must be treated immediately, so doctors base the diagnosis on the person's symptoms and history. After exposure to hydrogen sulfide, any coins that the person is carrying may have a green discoloration or darkening, which could increase the doctor's suspicion of hydrogen-sulfide exposure. Commonly ordered blood tests may suggest exposure to hydrogen cyanide or hydrogen sulfide, but only specialized tests can confirm it. 