CAMRT Radiography Practice Exam

Where should the endotracheal (ET) tube be placed to minimize risks in anesthesia?

1. At the level of the carina

2. 5-7 cm above the carina

3. At the vocal cords level

4. Below the left main bronchus

The correct answer is: 5-7 cm above the carina

Placing the endotracheal (ET) tube 5-7 cm above the carina is crucial for minimizing risks during anesthesia. This position allows for optimal ventilation while preventing accidental intubation into one of the main bronchi, which could lead to improper lung inflation and ventilation issues. When the tube is situated too close to the carina or below it, there is an increased risk of one lung not receiving adequate ventilation, which can result in complications such as hypoxia or atelectasis. Moreover, this placement reduces the likelihood of irritation or injury to the trachea and surrounding tissues, which can occur with an ET tube that is too deeply inserted. The recommended distance also allows for flexibility during patient movement or changes in position, reducing the chance of accidental extubation or displacement while maintaining effective airway management. Overall, this strategic positioning not only considers the anatomical structure but also enhances patient safety during procedures requiring anesthesia.