Why is nasal intubation challenging for pregnant patients?

Nasal intubation can be particularly challenging for pregnant patients due to physiological changes associated with pregnancy, notably the engorgement of the respiratory tract. As the pregnancy progresses, hormonal changes lead to inflammation and increased blood flow to mucosal tissues, which can cause swelling. This engorgement in the upper airway makes it more difficult to pass a nasal tube through the nostril and into the trachea, as the passage may become narrowed or obstructed due to the increased tissue volume.

Understanding this aspect is crucial for healthcare professionals, as it emphasizes the need for careful assessment and possibly alternative airway management strategies in pregnant patients. The other factors, while they may contribute to considerations during intubation, do not specifically address the direct challenge that engorgement presents in the context of nasal intubation.