How does one assess for nasal obstruction during a physical examination?

Assessing for nasal obstruction during a physical examination primarily involves asking the patient to breathe normally through each nostril. This simple yet effective approach allows the clinician to directly observe any differences in airflow. By having the patient close one nostril at a time while breathing through the other, the examiner can determine if there is any significant obstruction in either nasal passage. This method provides immediate feedback on the level of obstruction and highlights any asymmetry in airflow, which can be indicative of underlying conditions such as nasal polyps, deviated septum, or other structural abnormalities.

While other methods such as visual inspection of the nasal cavity and nasal endoscopy can provide additional information about the structure and potential causes of obstruction, they are more involved and not always necessary for an initial assessment of nasal patency. Visual inspection may reveal external abnormalities but does not evaluate the actual airflow. Nasal endoscopy is a more specialized procedure that allows for a detailed examination of the nasal passages and sinuses but is typically conducted when further investigation is warranted after an initial assessment. Palpating the nasal bridge does not contribute relevant information regarding nasal obstruction and is more applicable in assessing trauma or deformities.