Cholinomimetics - direct acting - Indirect acting - Toxicity of Organophosphates

9 important questions on Cholinomimetics - direct acting - Indirect acting - Toxicity of Organophosphates

What are the contraindications listed?

  • Mechanical intestinal obstruction
  • Urinary obstruction
  • Bronchial asthma
  • Bradyarrhythmia

What is required for patients exhibiting symptoms of organophosphate poisoning?

Patients exhibiting symptoms require immediate medical attention and treatment. It is a medical emergency. Immediate intervention is crucial to address the symptoms effectively.

What are the effects of acute poisoning by organophosphates?

Acute poisoning by organophosphates causes excessive muscarinic, nicotinic, and CNS effects. Death results from CNS effects, paralysis of respiratory muscles, NM blockade, and excessive bronchial secretions causing respiratory failure.
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What are the ABCD fundamental rules in the treatment of organophosphate poisoning?

Maintenance of vital signs; Aspiration of bronchial secretions, endotracheal intubation, and artificial respiration may be needed. These steps are crucial for stabilizing the patient.

What are the symptoms of a cholinergic crisis due to organophosphate toxicity?

Symptoms of a cholinergic crisis include severe abdominal cramping, diarrhea, excessive secretory activity (e.g., salivation, sweating), muscle weakness, rigidity, spasm, jaw clenching, bronchospasm, respiratory distress, and cardiac depression.

What is the purpose of decontamination in organophosphate poisoning treatment?

Decontamination is performed to prevent further absorption of the poison. This step is essential to limit the toxic effects on the body.

How is atropine used in the treatment of organophosphate poisoning?

Atropine is administered intravenously as an antidote, in large doses to combat CNS and muscarinic effects. It is a critical component of the treatment protocol.

What are examples of cholinesterase reactivators used in organophosphate poisoning?

Choline-esterase reactivators include Oximes; Pralidoxime (PAM) and Diacetylmonoxime (DAM). These agents help restore normal enzyme function.

When might diazepam be needed in the treatment of organophosphate poisoning?

Diazepam, a sedative hypnotic, may be needed to manage symptoms. It can be used to control seizures and provide sedation.

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