What is a potential risk of using a nasopharyngeal airway if there is clear fluid discharge?

When clear fluid is discharging from a patient's nose, it can indicate the presence of cerebrospinal fluid (CSF), potentially suggesting a skull fracture or significant head injury. Inserting a nasopharyngeal airway in such a situation poses a risk of exacerbating a brain injury because the device can further disrupt any damaged tissue or create additional trauma to the brain. The airway device may also cause increased intracranial pressure or risk introducing infections if the protective barriers are compromised. Thus, when clear fluid is present, caution must be exercised to avoid aggravating an already serious condition.