Which condition is a known risk factor for aspiration in critically ill patients?

Which condition is a known risk factor for aspiration in critically ill patients?

• A. Prolonged supine positioning
• B. Upright position with head of bed raised
• C. Short feeding tube
• D. Low gastric residual volumes

Answer: (A)

Prolonged supine positioning raises aspiration risk because, when lying flat, gastric contents are more likely to reflux toward the oropharynx and be aspirated, especially in patients with impaired protective airway reflexes from critical illness or sedation. Elevating the head of the bed to about 30–45 degrees uses gravity to keep stomach contents down and improves airway protection and clearance of secretions, thereby reducing the chance of inhaling vomit or formula. A short feeding tube by itself isn’t a known driver of aspiration, and low gastric residual volumes suggest the stomach isn’t distended, which lowers risk rather than raises it.

Prolonged supine positioning raises aspiration risk because, when lying flat, gastric contents are more likely to reflux toward the oropharynx and be aspirated, especially in patients with impaired protective airway reflexes from critical illness or sedation. Elevating the head of the bed to about 30–45 degrees uses gravity to keep stomach contents down and improves airway protection and clearance of secretions, thereby reducing the chance of inhaling vomit or formula. A short feeding tube by itself isn’t a known driver of aspiration, and low gastric residual volumes suggest the stomach isn’t distended, which lowers risk rather than raises it.