Related Experiment Video
Updated: Apr 16, 2026

Author Spotlight: Integrating Alveolar-Capillary Reserve Measurements in Exercise Adaptation and Therapeutic Strategies
Published on: February 2, 2024
[Exhaled air analysis and its application for diagnosis of the gas exchange abnormalities in COPD patients]
Abstract:
165 participants (100 chronic obstructive lung disease patients (COPD), 30 bronchial asthma patients (BA), and 35 healthy subjects) were examined. This study has aim to investigate possibilities of diagnosis gas exchange abnormalities in COPD patients with the use of capnometry. Capnometry allows to assess such ventilation and gas exchange abnormalities in stage III and IV COPD patients: decrease carbon dioxide production and its elimination impairment; decrease oxygen consumption, increase rest minute lung volume ventilation; tachypnoe and total duration of the respiratory cycle reduction; increase the "dead" space volume and its fraction in the tidal volume.
More Related Videos
Related Concept Videos
Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies
Medical History
Assessment 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...
Assessment of Respiration
Subjective Assessment: Nurses interview the patient to gather information directly during the subjective assessment. It includes questions about the individual's medical history, medications, and symptoms, focusing on past respiratory conditions like...
Physical Assessment of the Respiratory Tract II: Inspection
Chest Configuration
The chest configuration...
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...
Chronic Obstructive Pulmonary Disease-I: Introduction

