Neuromuscular Blocking Agents: Types and Mechanism
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Questions and Answers

What is the primary mechanism of action of vecuronium?

  • Acts directly on muscle cells to prevent calcium release
  • Blocks acetylcholine from binding to nicotinic receptors
  • Competitively blocks acetylcholine at the neuromuscular junction (correct)
  • Stimulates GABA-B receptors, inhibiting neurotransmitter release

    • What was the primary reason for the withdrawal of rapacuronium from the market?

  • Severe hypertension
  • Cardiovascular issues
  • Mild tachycardia
  • Severe bronchospasm (correct)

    • What is the primary indication for the use of dantrolene?

  • Facilitating mechanical ventilation
  • Rapid-sequence intubation
  • Muscle relaxation in general anesthesia
  • Treating malignant hyperthermia and chronic spasticity (correct)

    • What is the primary mechanism of action of baclofen?

    <p>Stimulates GABA-B receptors, inhibiting neurotransmitter release</p> Signup and view all the answers

    What is the primary use of vecuronium?

    <p>Facilitating mechanical ventilation and muscle relaxation</p> Signup and view all the answers

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