Because potassium hydride is not toxic, it needs about 20 grams or more if it is fatal. If potassium cyanide poisoning is treated in time, it can save lives, but generally because of its rapid toxicity and strong poisoning symptoms, patients often die after being rescued.
If potassium hydride is taken orally, it usually appears within ten seconds after the symptoms of poisoning appear, and coma occurs within thirty seconds. If it is not treated in time, it will basically send out a cry for life within two minutes.
Theoretically, if potassium cyanide poisoning is treated in time, it can save lives, but its toxin develops very rapidly. Very toxic, and the symptoms of poisoning are also relatively strong. Patients often die before they can be rescued, so there is no substantial breakthrough in the rescue of potassium cyanide poisoning in clinic.
Harm of potassium cyanide:
The inhibition of respiratory enzymes leads to intracellular asphyxia. Acute poisoning can be caused by inhalation, oral administration or percutaneous absorption. Oral administration of 50 ~ 100 mg can cause sudden death. Non-sudden death is clinically divided into four stages. In the prodromal stage, there are mucosal irritation, accelerated and deepened breathing, fatigue, headache, and numbness of the tongue and mouth after oral administration. Dyspnea includes dyspnea, elevated blood pressure and bright red skin mucosa.
Seizures, coma and respiratory failure occur during convulsions. During paralysis, the muscles of the whole body relax, breathing and heartbeat stop and die. Long-term exposure to a small amount of cyanide can cause neurasthenia syndrome, eye and upper respiratory tract irritation, and can cause rash.