In pediatric patients experiencing seizures, what is the initial midazolam dose for IV/IO administration (max dose 2.5 mg)?

• A. Midazolam, 0.1 mg/kg IV/IO with maximum dose 2.5 mg.
• B. Midazolam, 0.5 mg/kg IV/IO with maximum dose 5 mg.
• C. Midazolam, 0.2 mg/kg IM/IN with maximum dose 5 mg.
• D. Midazolam, 0.25 mg/kg IV/IO with maximum dose 3 mg.

Answer: (A)

When managing a pediatric seizure with IV or IO access, the goal is to stop the seizure quickly with a dose that is effective yet safe. Midazolam is a fast-acting benzodiazepine used for this purpose. The appropriate initial IV/IO dose is 0.1 mg/kg, with a maximum single dose of 2.5 mg. This weight-based amount provides rapid seizure control while limiting the risk of oversedation or respiratory compromise in small children. If the seizure continues after the first dose, protocols often allow another dose of the same amount (0.1 mg/kg, up to the per-dose maximum), depending on local guidelines.

Higher weight-based doses for IV/IO (such as 0.5 mg/kg or 0.25 mg/kg) raise the risk of oversedation and respiratory depression, and IM/IN dosing differs in route and timing, making them not the initial IV/IO dose with the specified 2.5 mg maximum. Thus, 0.1 mg/kg IV/IO up to 2.5 mg is the correct choice for the initial IV/IO dose.