When is intraosseous access preferred in pediatric emergencies?

• A. Only after multiple IV attempts.
• B. When intravenous access is not rapidly obtainable and medications/fluids are urgently needed.
• C. Never used in field.
• D. Intraosseous is faster than IV in all cases.

Answer: (B)

In pediatric emergencies, securing a route to deliver fluids and medications quickly is essential. Intraosseous access is preferred when intravenous access cannot be obtained rapidly and there’s an urgent need to administer meds or fluids. The bone marrow cavity provides a direct conduit to the central circulation, so meds and isotonic fluids can take effect quickly, which is crucial in shock, respiratory failure, or cardiac arrest where every second counts. This approach is particularly useful in children because their veins can be very small or collapsed in critical illness, making IV access challenging and time-consuming. An IO line is typically a rapid, temporary solution that can bridge to IV access once found, or serve as the primary route when IV access remains unattainable.

It’s not accurate to say intraosseous is never used in the field, or that it’s faster than IV in all cases. IV access may still be obtained quickly in some kids, and IO is specifically favored when IV access is not rapidly obtainable.