A doctor is scheduled to perform an endoscopic procedure on a child.The anesthetic should have a rapid onset of action as the child is agitated.Which of the following anesthetics is the best choice in this scenario?

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Methohexital is an ultrashort-acting barbiturate that induces general anesthesia within 30 seconds. It is efficiently cleared by the liver and does not result in tissue redistribution. Methohexital, propofol, etomidate, midazolam, diazepam, and lorazepam decrease intracranial pressure and cerebral blood flow. With barbiturates this is considered a protective effect against local cerebral ischemia. It may be an advantage with any of these drugs when used in neurosurgery.

A Doctor Is Scheduled to Perform an Endoscopic Procedure on a Child.The