What indicates a deviated septum during an assessment?

A deviated septum occurs when the nasal septum, the cartilage and bone structure that divides the nasal cavity, is displaced to one side. This can lead to an asymmetrical appearance of the nasal passages. The correct choice indicates that there is an irregular bump causing one nare (nostril) to breathe better than the other. This finding directly correlates with a deviated septum, as the displacement can create a blockage or narrowing on one side, leading to enhanced airflow through the other side.

In contrast, swelling in both nasal cavities typically suggests a condition like rhinitis or allergies affecting both sides equally rather than a structural issue. The presence of nasal congestion can occur for various reasons, including infections or allergies, without specifically indicating a septal deviation. Excessive mucous production is a common symptom of many nasal conditions but does not provide specific evidence of a deviated septum. Therefore, the identification of an irregular bump affecting airflow between the nostrils is a direct indicator of a deviated septum.