Which system is used to deliver ribavirin as a small particle aerosol to pediatric patients with bronchiolitis?

• A. Ultrasonic nebulizer
• B. Small volume nebulizer
• C. Continuous medication nebulizer
• D. Small particle aerosol generator

Answer: (D)

Delivering ribavirin effectively to bronchiolitis requires a device that creates very small inhaled particles so the medicine can reach the tiny airways in the infant’s lungs. A small particle aerosol generator is designed to produce aerosols in the 1–3 micron range, which allows deeper penetration into the distal bronchioles rather than depositing largely in the upper airways. That deeper deposition is crucial for therapeutic effect in RSV-related bronchiolitis. Other devices tend to produce larger particles that deposit earlier in the airways and don’t reach the small airways as efficiently, making them less suitable for this treatment.