Organophosphate Poisoning — Clinical

A 32-year-old male farmer is brought to the emergency department 30 minutes after accidental exposure to an organophosphate insecticide spray. He presents with profuse salivation, bronchospasm with audible wheezing, pinpoint pupils, muscle fasciculations, and a heart rate of 48 bpm. His blood pressure is 95/62 mmHg and SpO₂ is 88% on room air. Which of the following is the most appropriate immediate management?

A 32-year-old farmer from Punjab presents to the emergency department 45 minutes after accidental exposure to an organophosphate pesticide (malathion) while spraying crops. He is diaphoretic, tremulous, and complains of blurred vision and chest tightness. Vital signs: HR 52/min, BP 110/70 mmHg, RR 24/min. Examination reveals pinpoint pupils, bronchospasm with audible crackles, and visible fasciculations in the limbs. Serum cholinesterase activity is 25% of normal. What is the immediate next step in management?

A 35-year-old farmer from Punjab is brought to the emergency department 2 hours after accidental exposure to an organophosphate pesticide. He presents with severe salivation, bronchospasm, bradycardia (HR 48/min), and pinpoint pupils. Which investigation is most specific for confirming organophosphate poisoning?

A 32-year-old farmer from Punjab presents to the emergency department 2 hours after accidental exposure to an organophosphate pesticide. On examination, he exhibits profuse salivation, lacrimation, urination, defecation, muscle fasciculations, and pinpoint pupils. Which is the most common cause of death in organophosphate poisoning?

A 35-year-old farmer from Punjab presents to the emergency department 2 hours after accidental exposure to an organophosphate pesticide. On examination, he has pinpoint pupils, excessive salivation, and muscle fasciculations. His colleague, who was exposed to the same pesticide but arrived 6 hours later, presents with dilated pupils, dry mouth, and no visible fasciculations. Which clinical feature best distinguishes the acute cholinergic phase from the intermediate syndrome in organophosphate poisoning?