Related Experiment Video
Updated: May 30, 2026
Symptom Assessment of Patients with Allergic Rhinitis Using an Allergen Exposure Chamber
Published on: March 3, 2023
Peak nasal inspiratory flow evaluation as an objective method of measuring nasal airflow
Rodrigo Ubiratan Franco Teixeira1, Carlos Eduardo Monteiro Zappelini2, Fábio Silva Alves2
1MSC in Collective Health - FCM/UNICAMP.
Unlabelled:
Acoustic rhinometry, rhinomanometry and Inspiratory Peak Nasal Flow (IPNF) are used in order to objectively assess nasal patency. These are expensive not very practical tests, except for IPNF, which is a fast, simple and low cost method.
Objective:
To assess IPNF in healthy individuals complaining of nose obstruction caused by allergic rhinitis.
Method:
IPNF use in 78 individuals with and without rhinitis symptoms.
Study Design:
Contemporary cross-sectional cohort.
Results:
IPNF showed significant results for nasal obstruction, rhinorrhea, pruritus, sneezes and tearing (p < 0. 001). There was no correlation between the presence of nasal septum deviation and IPNF (p = 0. 561). We found a positive correlation between IPNF and the Visual Analogue Scale (VAS) for nasal obstruction (p = 0. 002). In the multiple linear regression model, there was a statistical significance between the values found in IPNF with allergic rhinitis and age (p = 0. 005 and p = 0. 023 respectively).
Conclusions:
IPNF proved to be a reliable method to detect changes in nasal patency, by obstructive causes as well as inflammatory causes, with an acceptable level of statistical significance, simple, easy to handle, inexpensive and reproducible.
Related Concept Videos
01:28Physical 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...
01:28Pipe Flowrate Measurement
The orifice meter is a simple,...
01:20Assessment of Ventilation I: Respiratory Rate
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:
01:17Assessment of Diffusion and Perfusion
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this principle...
01:25Pulmonary Function Tests
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
01:15Respiratory Volumes
Tidal Volume (TV) Tidal volume (TV) is the air inhaled or exhaled in a...