Symptoms of potassium cyanate poisoning?

summary

Cyanide is an acute poison, including hydrogen cyanide, sodium cyanide, potassium cyanide, ammonium cyanide and acrylonitrile. Hydrogen cyanide and acrylonitrile smoke can be quickly absorbed through the skin and respiratory tract. Cyanides block the circulation of tricarboxylic acid, so that the biological oxidation of tissue cells can not be carried out normally, resulting in "intracellular asphyxia", while the blood oxygen saturation is not affected, and it is still bright red. The central nervous system is first involved, and respiratory paralysis is often the cause of death in cyanide poisoning.

Symptoms of potassium cyanate poisoning?

There are many signs and symptoms of cyanide poisoning. The three main symptoms are loss of consciousness, metabolic acidosis and cardiopulmonary failure. Exposure to 150 mg / m3 cyanide gas can cause headache, dizziness, tachycardia and tachycardia; High concentration (> 300 mg / m3) can cause drowsiness, seizures and respiratory failure.

Inhalation of high concentration of cyanide gas can quickly die in 2-3 minutes. Diabetes insipidus or similar symptoms and signs may be the adverse signs of hypoxic encephalopathy.

The key to successful rescue of acute cyanide poisoning is early diagnosis, immediate use of antidotes and supportive therapy, including specific detoxification therapy (Table 1) and general supportive therapy, such as oxygen inhalation, auxiliary ventilation when necessary, and maintenance of hemodynamic stability. Persist in on-site rescue. The common side effects include hypotension, tachycardia and methemoglobinemia. Other antidotes, such as hydroxycobalamin, which chelates with cyanide to form cobalamin (vitamin B12) and is excreted from the kidney. Cobalt compounds (such as cobalt EDTA) and other gold containing compounds can also effectively remove cyanide from the body.

matters needing attention

There are many kinds of cyanide, which can release hydrogen cyanide gas in the process of chemical reaction, especially when high temperature and acidic substances act. Common operations are electroplating, metal surface carburizing and photographers, refining precious metals from ores, chemical industry manufacturers, resin and other raw material contacts, all can get sick.