For pediatric pain management, what is the weight-based fentanyl dose for IV/IO administration?

• A. 1 mcg/kg IV/IO (diluted)
• B. 1.5 mcg/kg IM/IN (diluted)
• C. 2 mcg/kg IV/IO (diluted)
• D. 0.5 mcg/kg IV/IO (undiluted)

Answer: (A)

In pediatric pain management, dosing opioids like fentanyl must be tailored to the child’s weight and the route given, because fentanyl is very potent and acts quickly. For IV or IO delivery, the standard starting dose is 1 microgram per kilogram, and it’s given in a diluted form. Diluting allows the dose to be delivered in a small, precise volume, which helps the clinician control exactly how much medication is given and reduces the risk of accidentally giving too much with a tiny, concentrated bolus.

This makes sense because IV/IO administration provides rapid onset, so a precise, safe amount is crucial. The other options either refer to different routes (IM/IN) that use different dosing patterns or suggest an undiluted, potentially more concentrated dose that’s harder to measure accurately in small patients. The key takeaway is: 1 mcg/kg IV/IO, diluted, aligns with safe, effective weight-based practice for pediatric IV/IO fentanyl.