Final answer:
The Combitube® may be used for emergency ventilation. It has two lumens, allowing for ventilation whether it is placed in the trachea or esophagus, and it is designed for single-use.
Step-by-step explanation:
The correct answer to which of the following is true about the Combitube® is B) It may be used for emergency ventilation. The Combitube® is an airway device used for noninvasive airway management in situations where tracheal intubation is not possible or not advisable. It is designed for emergency situations and is especially useful in pre-hospital and emergency department settings.
The Combitube® has two lumens, one opening above the cuff for esophageal placement and one opening at the tip for tracheal placement. In case the tube is mistakenly inserted into the esophagus, ventilation can still be performed through the esophageal lumen. This is because the device is designed to allow ventilation whether it is placed in the trachea or esophagus, although it is not meant to facilitate intubation through the vocal cords like a regular endotracheal tube.
It is important to note that the Combitube® is a single-use device, meant to be disposed of after use, and not reusable. Furthermore, the effectiveness of the Combitube® does not rely on it being placed strictly in the trachea.