Related Experiment Video

Updated: Jul 14, 2026

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

[Bronchial capacity in community-acquired pneumonia]

F F Tetenev, T S Ageeva, V Iu Danilenko

    Terapevticheskii Arkhiv
    |May 29, 2007
    PubMed
    Summary

    Community pneumonia (CP) patients often have reduced peak expiratory flow (PEF), but bronchial resistance (Raw) is typically normal, suggesting non-pulmonary causes for ventilation issues. Examining Raw is crucial for diagnosing latent COPD in CP patients with low pulmonary ventilation function.

    More Related Videos

    Following in Real Time the Impact of Pneumococcal Virulence Factors in an Acute Mouse Pneumonia Model Using Bioluminescent Bacteria11:32

    Following in Real Time the Impact of Pneumococcal Virulence Factors in an Acute Mouse Pneumonia Model Using Bioluminescent Bacteria

    Published on: February 23, 2014

    Dual Test Gas Pulmonary Diffusing Capacity Measurement During Exercise in Humans Using the Single-Breath Method08:44

    Dual Test Gas Pulmonary Diffusing Capacity Measurement During Exercise in Humans Using the Single-Breath Method

    Published on: February 2, 2024

    Related Concept Videos

    Lung Capacity01:47

    Lung Capacity

    The air in the lungs is measured in volumes and capacities. Lung volume measures reflect the amount of air taken in, released, or left over after a lung function, like a single inhalation. Lung capacity measures are sums of two or more lung volume measures.
    Respiratory Capacities01:24

    Respiratory Capacities

    Respiratory capacities are crucial indicators of lung function, representing the maximum amount of air an individual's respiratory system can handle during various breathing phases.
    One key metric is the Inspiratory Capacity (IC), which represents the maximum amount of air that can be inhaled with full effort. IC is calculated by summing the tidal volume and inspiratory reserve volume, typically ranging from 2.4 to 3.6 liters.
    The Functional Residual Capacity (FRC) represents the air in the...
    Respiratory Volumes and Capacities01:22

    Respiratory Volumes and Capacities

    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...
    Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

    Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

    Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
    Pneumonia I: Introduction01:29

    Pneumonia I: Introduction

    Pneumonia is an infection of the lower respiratory tract that leads to inflammation of the lung parenchyma, often resulting in the accumulation of inflammatory exudate in the alveoli and airways. Unlike the watery, low-protein fluid exudate in pulmonary edema, the exudate in this case is a thick fluid rich in immune cells, proteins, and debris produced during infection and inflammation.This impairs gas exchange and can lead to consolidation of lung tissue. The infection may be caused by a...
    Pneumonia I: Introduction01:30

    Pneumonia I: Introduction

    Pneumonia is an acute respiratory infection that targets the lungs, specifically the alveoli. These tiny air sacs, essential for oxygen exchange, become engorged with pus and fluid, severely hindering breathing, decreasing oxygen absorption, and causing significant pain and discomfort during respiration.
    Risk Factors
    Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...