Poisoning cyanide compounds

Poisoning cyanide compounds currently are rare (cyanide, much less often - cyanide cyanide sodium or mercury). Hydrocyanic acid (hydrocyanic acid) in pure form is only in laboratories. In the fruit and seeds of some plants (peaches, apricots, cherries, plums, almonds and other) contains glucoside, liberating decomposition of hydrocyanic acid, therefore, in excess, their use can cause poisoning.
In the body of cyanide compounds come through the mouth and quickly absorbed into the blood through the mucous membrane of the oral cavity, esophagus and stomach. With the penetration of cyanide compounds in the tissues of their active langroup stabilize the respiratory enzyme - cytochrome oxidase steadily trivalent iron, resulting in disrupted the ability of cells to absorb oxygen from the blood and develops deep tissue hypoxia without anoxemia. First of all suffer from nerve cells in the brain, which leads to paralysis of the respiratory and vasomotor centers. Lethal dose of pure hydrogen cyanide - 0.005 to 0.1 g; potassium cyanide - 0,15-0,25 g
In high doses, death occurs very quickly - within minutes. Marked loss of consciousness, convulsions, dyspnea, dilated pupils, and death. At lower doses (0.1-0.2 g potassium cyanide) signs of poisoning occur in 5-10 min, appear nausea and vomiting, increasing weakness, convulsions, loss of consciousness occurs, then stop breathing and heart. The whole period of poisoning last from 15 to 40 minutes drive
In section define the signs of acute onset of death. Cadaveric spots cherry, blood, liquid, red.
From cavity, lungs and brain odor of bitter almonds. Of great importance in the diagnosis of poisoning given judicial-chemical study of the stomach contents, blood, brain, liver, kidneys and urine.