How does Selick differ from ELM?

The correct answer highlights that Selick maneuver is specifically designed to prevent air from entering the stomach during positive pressure ventilation. This is particularly important in trauma or medical emergencies where maintaining proper airway management can directly impact patient outcomes.

When performing positive pressure ventilation, there is a risk that air can enter the stomach instead of the lungs if the airway is not properly controlled. The Selick maneuver achieves this by applying pressure to the cricoid cartilage, which compresses the esophagus and helps to prevent regurgitation and subsequent insufflation of the stomach with air. This technique is crucial in situations like intubation or when the airway is at risk of becoming obstructed.

Understanding the underlying principles of Selick's maneuver and its role in preventing air from entering the stomach reinforces the importance of effective airway management in trauma cases. This ensures that ventilation is directed into the lungs, which is paramount in providing effective care to the injured or critically ill patient.