For laryngospasm requiring intubation, which is the correct route and dose of succinylcholine?

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Multiple Choice

For laryngospasm requiring intubation, which is the correct route and dose of succinylcholine?

In this situation the priority is rapid control of the airway, which means using a agent that produces quick, complete muscle relaxation. Succinylcholine is a depolarizing neuromuscular blocker that acts faster than nondepolarizing agents, making it the drug of choice when laryngospasm threatens ventilation and you need to intubate immediately. If an IV line is already in place, give a rapid IV dose (about 1–2 mg/kg) to achieve quick paralysis. If there is no IV access or you cannot obtain one promptly, administer succinylcholine intramuscularly; a typical pediatric emergency dose is around 5–10 mg, which reliably provides rapid relaxation to facilitate intubation. The other options either involve a slower-acting muscle blocker or an agent that does not provide adequate paralysis for immediate intubation (nondepolarizing blockers) or is not a paralytic (propofol alone). So the best approach in this scenario is succinylcholine given intramuscularly at about 5–10 mg when IV access is not available, with IV dosing (1–2 mg/kg) used if an IV line is present.

In this situation the priority is rapid control of the airway, which means using a agent that produces quick, complete muscle relaxation. Succinylcholine is a depolarizing neuromuscular blocker that acts faster than nondepolarizing agents, making it the drug of choice when laryngospasm threatens ventilation and you need to intubate immediately.

If an IV line is already in place, give a rapid IV dose (about 1–2 mg/kg) to achieve quick paralysis. If there is no IV access or you cannot obtain one promptly, administer succinylcholine intramuscularly; a typical pediatric emergency dose is around 5–10 mg, which reliably provides rapid relaxation to facilitate intubation. The other options either involve a slower-acting muscle blocker or an agent that does not provide adequate paralysis for immediate intubation (nondepolarizing blockers) or is not a paralytic (propofol alone).

So the best approach in this scenario is succinylcholine given intramuscularly at about 5–10 mg when IV access is not available, with IV dosing (1–2 mg/kg) used if an IV line is present.

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