For adults with seizures when IV is unavailable, which Diazepam dosing option is valid?

• A. 10 mg IM autoinjector
• B. 2.5 mg IV
• C. 15 mg IM
• D. 5 mg IV/IO

Answer: (A)

When IV access is not available, you need a benzodiazepine option that works well via a non-IV route and can be used quickly and reliably. The 10 mg diazepam autoinjector given intramuscularly is designed for exactly this scenario: a ready-to-use device that delivers a fixed adult dose without needing IV access, enabling rapid seizure control in the field or non-IC settings.

Other choices rely on IV or IO access or use a nonstandard dose for adults. An IV dose of diazepam is not suitable when IV access cannot be obtained, and IM doses like a 15 mg amount aren’t the standard, commonly recommended adult IM dosing. A 5 mg IV/IO option still depends on invasive access, which isn’t available in this context.

Thus, the intramuscular 10 mg autoinjector best fits the situation by providing a practical, approved non-IV route with an effective adult dose for acute seizure management.