What is the adult dosing range for fentanyl in Procedural Sedation?

• A. 5-10 mcg Q1 hour
• B. 25-100 mcg Q1 hour in adults
• C. 0.5-1 mg Q1 hour
• D. 250-1000 mcg Q1 hour

Answer: (B)

Procedural sedation relies on titrated, short-acting analgesia, and fentanyl is given in small, repeatable microgram doses with careful monitoring. In adults, the typical approach is to administer a dose in the tens of micrograms range and repeat every hour as needed to maintain analgesia while watching for signs of respiratory depression or oversedation. This hourly, incremental dosing reflects the drug’s rapid onset and relatively short duration, allowing timely reassessment and adjustment.

Why this range fits best: 25-100 micrograms per dose provides effective analgesia for most adults without overwhelming the respiratory system when used alone or with other sedatives. The alternatives describe doses that are either too small to achieve adequate analgesia in procedural settings (5-10 micrograms) or vastly exceed safe per-dose amounts (hundreds of micrograms to over a milligram) and would raise the risk of dangerous respiratory compromise. Always couple dosing with diligent monitoring and readiness to support ventilation or reverse with naloxone if needed.