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Related Concept Videos

Assessment of Diffusion and Perfusion01:17

Assessment of Diffusion and Perfusion

Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
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...
Physical Assessment of the Respiratory Tract II: Inspection01:27

Physical Assessment of the Respiratory Tract II: Inspection

Physical assessment of the respiratory tract through inspection is a crucial step in understanding the patient's respiratory health. It provides insights into the functioning of the respiratory system, the musculoskeletal structure, and even the patient's nutritional status. This comprehensive approach involves observing several vital aspects: chest configuration, breathing patterns, respiratory rates, skin color, and use of accessory muscles.
Chest Configuration
The chest configuration can...
Alterations in Respiration II01:30

Alterations in Respiration II

There are numerous types of normal and abnormal respiration. Based on ventilatory movements, breathing patterns are classified as regular, deep, or shallow. Examples include Biot's breathing, Cheyne-Stokes respiration, Kussmaul's breathing, hyperventilation, and hypoventilation. Each pattern is clinically significant and aids in evaluating patients.
In Biot's breathing, the respiratory rate and depth are irregular, alternating between periods of deep gasping and apnea. Common causes include...
Assessment of Ventilation II: Respiratory Depth and Rhythm01:29

Assessment of Ventilation II: Respiratory Depth and Rhythm

Respiratory Depth
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies01:27

Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies

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
Assessment of Respiration01:23

Assessment of Respiration

The respiratory system's basic structures and primary functions lay the foundation for nurses' comprehensive respiratory assessments. This assessment includes subjective and objective data to gauge the patient's respiratory health.
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 asthma or COPD,...

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Related Experiment Video

Updated: May 28, 2026

Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry
08:23

Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry

Published on: March 9, 2018

Exhaled breath analysis and sleep.

Giovanna E Carpagnano1

  • 1Institute of Respiratory Disease, Department of Medical and Occupational Sciences, University of Foggia, Italy. ge.carpagnano@unifg.it

Journal of Clinical Sleep Medicine : JCSM : Official Publication of the American Academy of Sleep Medicine
|October 18, 2011
PubMed
Summary

Obstructive sleep apnea syndrome (OSAS) is a growing public health issue. Analyzing exhaled breath markers offers a non-invasive method for evaluating OSAS, but further research is needed for clinical use.

Area of Science:

  • Pulmonary Medicine
  • Sleep Medicine
  • Biomarkers

Background:

  • Obstructive sleep apnea syndrome (OSAS) presents a significant and increasing public health concern with substantial economic impact.
  • Pathophysiology of OSAS is increasingly linked to airway inflammation and oxidative stress.
  • Non-invasive investigation of respiratory disorders, including OSAS, is gaining traction.

Purpose of the Study:

  • To review the general aspects of exhaled breath analysis.
  • To update on the application of exhaled breath markers in obstructive sleep apnea syndrome (OSAS).
  • To discuss the current clinical applicability and future directions for exhaled breath analysis in OSAS.

Main Methods:

  • Review of scientific literature on exhaled breath analysis in sleep disorders.

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Breath Collection from Children for Disease Biomarker Discovery
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Fast and Accurate Exhaled Breath Ammonia Measurement
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Fast and Accurate Exhaled Breath Ammonia Measurement

Published on: June 11, 2014

Related Experiment Videos

Last Updated: May 28, 2026

Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry
08:23

Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry

Published on: March 9, 2018

Breath Collection from Children for Disease Biomarker Discovery
06:09

Breath Collection from Children for Disease Biomarker Discovery

Published on: February 14, 2019

Fast and Accurate Exhaled Breath Ammonia Measurement
06:27

Fast and Accurate Exhaled Breath Ammonia Measurement

Published on: June 11, 2014

  • Focus on volatile mediators (e.g., NO, CO, ethane, pentane) and non-volatile substances in breath condensate.
  • Exploration of non-invasive techniques for airway evaluation and patient monitoring.

    • Main Results:

    • Exhaled breath analysis offers a non-invasive approach for studying airways in OSAS.
    • Current scientific contributions highlight the potential of exhaled markers, but clinical application is limited.
    • Proteomics, genomics, and metabolomics may enhance understanding and application of exhaled markers.

    Conclusions:

    • Exhaled breath analysis is a promising non-invasive tool for OSAS evaluation and monitoring.
    • Further research integrating advanced 'omics' technologies is crucial for clinical translation.
    • Future studies should focus on refining exhaled marker analysis for practical clinical application in OSAS management.