Related Experiment Video
Updated: Jul 27, 2026

Nasal Brushing Sampling and Processing Using Digital High Speed Ciliary Videomicroscopy – Adaptation for the COVID-19 Pandemic
Published on: November 7, 2020
Nasal impairment in prepubertal children
U Crouse1, M T Laine-Alava, D W Warren
1Graduate Student, Departments of Orthodontics and Physiology, University of Kentucky, Lexington, USA.
Abstract:
The aim of this study was to examine changes in nasal resistance longitudinally from age 9 to 13. The study population consisted of 82 children whose nasal resistance was measured annually. The results showed that as nasal resistance significantly decreased with age, it also increased transiently at some point between ages 9 and 13. The timing of the transient change in resistance varied among individuals, but it usually occurred before age 12. No gender differences were observed. The results suggest that clinical signs of nasal impairment may periodically occur and then disappear in prepubertal orthodontic patients.
Related Concept Videos
Upper Respiratory Drugs: Antitussives, Expectorants, and Mucolytics
Antitussives include codeine, dextromethorphan (Robitussin), and benzonatate (Tessalon). Codeine and dextromethorphan exert their effects centrally by suppressing the cough reflex center in the medulla. Benzonatate operates peripherally within the respiratory tract by anesthetizing...
Nose and Nasal Cavity
Physical Assessment of the Respiratory Tract I: Health History
Subjective Data
Subjective data provides vital information about the patient's health history and symptoms. This data is typically collected through interviews in which patients describe their experiences, symptoms, and concerns.
Health history and key...
Epistaxis
Etiology
Possible causes of this condition include high blood pressure, trauma, low humidity, upper respiratory tract infections, allergies, foreign bodies, nasal inhalation of corticosteroids or illicit drugs, excessive use of decongestant nasal sprays, facial or nasal surgery, anatomic malformation, tumors, or systemic...
Suctioning the Nasopharyngeal Airway
Equipment Required
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

