Before endotracheal intubation of a pediatric patient, which medication is commonly used for rapid sequence intubation?

• A. edrophonium
• B. flumazenil
• C. naloxone
• D. succinylcholine

Answer: (D)

Rapid sequence intubation aims for immediate, controlled paralysis to secure the airway quickly and minimize aspiration risk. The drug that best fits this need in pediatric RSI is a fast-acting depolarizing neuromuscular blocker. It produces onset within about 30 to 60 seconds and a brief duration, roughly 5 to 10 minutes, allowing rapid paralysis for tube placement and quicker return of spontaneous respiration if needed. This speed of onset is what makes it the preferred choice for RSI.

The other medications listed serve different roles: one is an acetylcholinesterase inhibitor used for diagnosing or reversing certain neuromuscular conditions, another reverses benzodiazepines, and the last reverses opioids. They do not provide the rapid, reliable paralysis required for quick airway control in RSI.