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Organophosphate poisoning is poisoning due to organophosphates (OPs). [4] Organophosphates are used as insecticides, medications, and nerve agents. [4] Symptoms include increased saliva and tear production, diarrhea, vomiting, small pupils, sweating, muscle tremors, and confusion. [2]
Acute alcohol poisoning is a medical emergency due to the risk of death from respiratory depression or aspiration of vomit if vomiting occurs while the person is unresponsive. Emergency treatment strives to stabilize and maintain an open airway and sufficient breathing while waiting for the alcohol to metabolize.
In the treatment of organophosphate toxicity, cholinesterase reactivators such as Pralidoxime reactivate inhibited AChE at peripheral nicotinic receptors.Since AChE mediates effects on both nicotinic and muscarinic receptors, cholinesterase reactivators are co-administered with muscarinic antagonists, primarily atropine.
The onset of an ACC can vary from minutes to multiple hours post-exposure. [23] [20] Symptoms of a terbufos induced ACC result in muscarinic (diaphoresis, vomiting, miosis, salivation), nicotinic (pallor and muscle weakness with respiratory failure) and CNS poisoning (headache, dizziness, altered level of consciousness) symptoms. [24]
The toxicity of sarin in humans is largely based on calculations from studies with animals. The lethal concentration of sarin in air is approximately 28–35 mg per cubic meter per minute for a two-minute exposure time by a healthy adult breathing normally (exchanging 15 liters of air per minute, lower 28 mg/m 3 value is for general population ...
Pralidoxime (2-pyridine aldoxime methyl chloride) or 2-PAM, usually as the chloride or iodide salts, belongs to a family of compounds called oximes that bind to organophosphate-inactivated acetylcholinesterase. [1] It is used to treat organophosphate poisoning [2] in conjunction with atropine and either diazepam or midazolam. It is a white solid.
In cases of exposure to ethoprophos, symptoms may include vomiting, nausea, diarrhea, miosis, abdominal cramps, dyspnoea, muscular weakness, bronchial hypersecretion, anxiety, confusion and convulsions. In case of ethoprophos poisoning, a combination of atropine and pralidoxime (2-PAM) is the most effective antidote. [1]
Studies have suggested that exposure to some organophosphate pesticides can result in long-term neurological problems including organophosphate-induced delayed neuropathy (weakness or paralysis as well as paresthesia in the extremities); however, reports of these symptoms following diazinon exposures are rare.