Adult Critical Care Specialty (ACCS) Practice Exam

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Which advantage is associated with the use of succinylcholine as a paralytic agent?

Long duration of action
Fast onset and short duration
High potency
Minimal side effects

The correct answer is: Fast onset and short duration

Succinylcholine is known for its rapid onset and brief duration of action, making it particularly advantageous in critical care settings. It works quickly, typically within 30 to 60 seconds, which is crucial during emergency situations where immediate paralysis is necessary for procedures such as intubation. The short duration, generally lasting around 4 to 6 minutes, allows for quick recovery of neuromuscular function once the medication is discontinued, enabling patients to regain their ability to breathe spontaneously without prolonged sedation. This characteristic of succinylcholine makes it ideal in scenarios where fast-acting paralysis is required, distinguishing it from other paralytic agents that may have longer durations of action. While succinylcholine has a high potency and may have side effects, its speed and brevity of action are its primary attributes in urgent care settings.