Final answer:
Either nostril can be selected for nasotracheal intubation, depending on various factors such as the patient's anatomy and the medical professional's experience.
Step-by-step explanation:
When performing nasotracheal intubation, either nostril can be selected for the procedure. The choice of nostril depends on several factors, such as the patient's anatomy, any nasal blockages, and the preferences and experience of the medical professional performing the intubation. The main goal is to achieve successful and safe intubation by ensuring that the tube is properly inserted into the trachea.