Anesthesia Technologist Complete Practice Exam 2025

Cricoid pressure, also known as Sellick's maneuver, is applied during intubation primarily to prevent aspiration. It involves applying pressure to the cricoid cartilage, which compresses the esophagus and helps minimize the risk of stomach contents being regurgitated into the airway. This is especially critical in patients who are at risk of aspiration, such as those with full stomachs or decreased consciousness.

The effectiveness of cricoid pressure in preventing aspiration is rooted in anatomy; by compressing the esophagus against the cervical spine, it helps to create a barrier that reduces the likelihood of gastroesophageal reflux during the intubation process. This practice is particularly emphasized in emergency situations where patients may not have fasted prior to anesthesia.

In contrast, while cricoid pressure may incidentally affect ventilation and intubation speed, its primary and most significant purpose is to protect the airway from potential contaminants that could lead to serious complications like aspiration pneumonia. Monitoring oxygen saturation and facilitating quicker intubation are not the functions of cricoid pressure, making the emphasis on aspiration prevention vital for patient safety during anesthesia and airway management.