Why should the naspharyngeal airway not be?

The nasopharyngeal airway should not be used in patients with suspected skull fractures or significant facial trauma, as it can potentially enter the cranium or cause further damage. Additionally, it may not be suitable for individuals with severe coagulopathy or bleeding disorders due to the risk of causing bleeding. In some cases, it may also be poorly tolerated in conscious patients, leading to gag reflex and discomfort. Proper assessment and indications are crucial before its use.