Jove
Visualize
Contact Us

Related Concept Videos

Pulmonary Function Tests01:25

Pulmonary Function Tests

313
Pulmonary Function Tests (PFTs)
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...
313
Asthma-II: Pathophysiology and Classification01:26

Asthma-II: Pathophysiology and Classification

2.6K
Asthma is a prevalent chronic respiratory condition marked by inflammation and hyperresponsiveness of the airways. Its pathophysiology involves complex interactions among inflammatory pathways, immune responses, and neural mechanisms.
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
2.6K
Respiratory Volumes and Capacities I01:26

Respiratory Volumes and Capacities I

981
Assessing the respiratory rate and rhythm for a complete minute is crucial for evaluating the breathing pattern. Even a minor increase in the patient's average respiratory rate, by as little as three to five breaths per minute, is an early and vital indicator of respiratory distress. Patients with a respiratory rate exceeding twenty-four breaths per minute require close monitoring to determine the physiological alterations. This careful observation is essential for prompt recognition and...
981
Respiratory Volumes and Capacities01:22

Respiratory Volumes and Capacities

1.8K
The respiratory system is responsible for the intake of oxygen and the expulsion of carbon dioxide from the body. Respiratory volumes describe the volume of air in the lungs at different phases of the respiratory cycle. Tidal volume is the air breathed in and out during normal, quiet breathing. Inspiratory reserve volume is the air that can be forcefully inspired beyond the tidal volume. In contrast, expiratory reserve volume refers to the air that can be expelled from the lungs after a normal...
1.8K
Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies01:27

Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies

2.5K
Assessing and diagnosing Chronic Obstructive Pulmonary Disease (COPD) involves a detailed approach that includes a comprehensive review of medical history, physical examination, and a variety of diagnostic tests. This thorough evaluation is essential to ensure an accurate diagnosis and guide effective management strategies.
Medical History
2.5K
Respiratory Volumes01:15

Respiratory Volumes

1.4K
Respiratory volumes are crucial metrics, meticulously measured to quantify the air exchanged in and out of the lungs during various phases of the breathing cycle. These precise measurements are vital for assessing lung function, diagnosing respiratory conditions, and monitoring overall respiratory health. Each parameter provides specific insights into the mechanics of breathing and the functional capacity of the lungs.
Tidal Volume (TV) Tidal volume (TV) is the air inhaled or exhaled in a...
1.4K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Elevated <i>D</i> <sub>LCO</sub> and pulmonary function evolution during treatment in a patient with hyperleukocytosis and leukostasis.

Breathe (Sheffield, England)·2026
Same author

Evaluation of the performance of the reference equations for single-breath diffusing capacity of the lung for carbon monoxide (DLCOsb) in Latin American populations at different altitudes: A multicentre study.

Pulmonology·2026
Same author

Joint statement from GOLD/GLI regarding the use of spirometry to define airflow obstruction and diagnose COPD.

The European respiratory journal·2026
Same author

Improved Pulmonary Gas Exchange at Altitude Is Due to Pulmonary Vascular Adaptation to Chronic Hypoxia in Urban Residents.

High altitude medicine & biology·2025
Same author

Technical aspects and interpretation of oscillometry.

Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia·2025
Same author

Functional respiratory evaluation in the coronavirus disease-19 era: The role of pulmonary function test laboratories.

Revista de investigacion clinica; organo del Hospital de Enfermedades de la Nutricion·2025
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Video

Updated: Jun 18, 2025

Conducting Respiratory Oscillometry in an Outpatient Setting
14:49

Conducting Respiratory Oscillometry in an Outpatient Setting

Published on: April 8, 2022

7.0K

Changes in the Functional Classification of Spirometry Using the New Interpretation Standard 2022: A Multicenter

Santiago C Arce1, Carlos Aguirre-Franco2, Patricia Schonffeldt-Guerrero3

  • 1Instituto de Investigaciones Médicas A. Lanari, Universidad de Buenos Aires, Argentina.

Archivos De Bronconeumologia
|July 27, 2024
PubMed
Summary

The 2022 pulmonary function test standards significantly alter diagnoses, reclassifying many obstructive cases and bronchodilator responses. These updates impact lung disease diagnosis and treatment strategies, especially in different age groups.

Keywords:
BronchodilationInterpretationPulmonary function testsSpirometry

More Related Videos

Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults
06:11

Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults

Published on: February 9, 2022

5.5K
Author Spotlight: Integrating Alveolar-Capillary Reserve Measurements in Exercise Adaptation and Therapeutic Strategies
08:44

Author Spotlight: Integrating Alveolar-Capillary Reserve Measurements in Exercise Adaptation and Therapeutic Strategies

Published on: February 2, 2024

692

Related Experiment Videos

Last Updated: Jun 18, 2025

Conducting Respiratory Oscillometry in an Outpatient Setting
14:49

Conducting Respiratory Oscillometry in an Outpatient Setting

Published on: April 8, 2022

7.0K
Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults
06:11

Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults

Published on: February 9, 2022

5.5K
Author Spotlight: Integrating Alveolar-Capillary Reserve Measurements in Exercise Adaptation and Therapeutic Strategies
08:44

Author Spotlight: Integrating Alveolar-Capillary Reserve Measurements in Exercise Adaptation and Therapeutic Strategies

Published on: February 2, 2024

692

Area of Science:

  • Pulmonary Medicine
  • Respiratory Diagnostics
  • Clinical Research

Background:

  • Pulmonary function tests (PFTs) are crucial for diagnosing and monitoring lung diseases.
  • The European Respiratory and American Thoracic Societies (ERS/ATS) released updated PFT interpretive standards in 2022, differing from the 2005 guidelines.
  • Key changes include lung volume integration, z-scores, revised severity categories, and updated bronchodilator response criteria.

Purpose of the Study:

  • To compare spirometry results using the 2005 and 2022 ATS/ERS interpretive standards.
  • To assess the impact of the 2022 standards on diagnostic classifications and bronchodilator response assessments.
  • To analyze variations in severity categorization across different age groups under the new standards.

Main Methods:

  • Retrospective, multi-center study utilizing spirometric data from 2002-2022.
  • Categorization of spirometry results according to both 2005 and 2022 ATS/ERS standards.
  • Calculation of predicted values using the GLI 2012 equation for the Caucasian subset.

Main Results:

  • A significant shift was observed, with 23% of subjects reclassified from obstructive to mixed pattern diagnoses under the 2022 standards, indicating a need for lung volume assessments.
  • 12.3% of bronchodilator responders were reclassified as non-responders using the 2022 criteria.
  • Severity classifications varied by age, with older patients receiving milder classifications and younger patients receiving more severe ones under the 2022 standards.

Conclusions:

  • The 2022 standards may increase the utilization of lung volume assessments and more complex pulmonary function tests.
  • Bronchodilator responsiveness was more prevalent in extreme age groups and those with milder spirometric impairments.
  • These changes could influence clinical decision-making, potentially leading to earlier treatment initiation or de-escalation based on revised severity assessments.