Which intervention is central to preventing ventilator-associated pneumonia?

Which intervention is central to preventing ventilator-associated pneumonia?

• A. Elevating the head of the bed to 30–45 degrees and regular oral care with chlorhexidine
• B. Regular endotracheal suctioning
• C. Prolonged prophylactic antibiotics
• D. Avoiding oral care to prevent aspiration

Answer: (A)

Preventing ventilator-associated pneumonia centers on reducing the chance that secretions or bacteria from the upper airway reach the lungs and on lowering the amount of bacteria present in the mouth and throat. Elevating the head of the bed to 30–45 degrees minimizes the risk that oropharyngeal secretions are aspirated into the lower airways. Regular oral care with chlorhexidine lowers the bacterial load in the mouth and throat, reducing the inoculum that could seed infection if microaspiration occurs. Together, these practices form a key part of the preventive strategy for VAP. Regular endotracheal suctioning helps manage secretions but is not the central preventive measure, prolonged prophylactic antibiotics are not recommended due to resistance concerns, and avoiding oral care would increase, not decrease, risk.

Preventing ventilator-associated pneumonia centers on reducing the chance that secretions or bacteria from the upper airway reach the lungs and on lowering the amount of bacteria present in the mouth and throat. Elevating the head of the bed to 30–45 degrees minimizes the risk that oropharyngeal secretions are aspirated into the lower airways. Regular oral care with chlorhexidine lowers the bacterial load in the mouth and throat, reducing the inoculum that could seed infection if microaspiration occurs. Together, these practices form a key part of the preventive strategy for VAP. Regular endotracheal suctioning helps manage secretions but is not the central preventive measure, prolonged prophylactic antibiotics are not recommended due to resistance concerns, and avoiding oral care would increase, not decrease, risk.