Which of the following suggestions would reduce the risk of ventilator associated pneumonia for a child with ARDS?

• A. Use of a closed suction catheter
• B. Prone positioning
• C. Recruitment maneuvers
• D. Use of small volume nebulizer

Answer: (A)

Preventing ventilator-associated pneumonia in a child on mechanical ventilation centers on keeping the airway circuit as closed and uncontaminated as possible during airway suctioning and care. Using a closed suction catheter achieves this by allowing secretions to be cleared through the endotracheal tube without disconnecting the ventilator circuit. Keeping the circuit closed reduces exposure of the sterile lower airway to room air and potential contaminants, minimizes circuit breaks, and lowers the chance that bacteria from the environment or hands can enter the airway. It also reduces coughing and loss of ventilation during suctioning, helping maintain lung recruitment in ARDS.

Prone positioning can improve oxygenation and outcomes in ARDS but isn’t specifically a method to reduce VAP risk. Recruitment maneuvers likewise target oxygenation and lung mechanics rather than direct infection prevention. Small volume nebulizers can introduce or spread pathogens and may increase VAP risk, so they aren’t a strategy to decrease pneumonia risk.