Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Pulmonary Function Tests01:25

Pulmonary Function Tests

438
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...
438
Respiratory Volumes01:15

Respiratory Volumes

1.7K
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...
1.7K
Lung Capacity01:47

Lung Capacity

51.5K
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.
51.5K
Respiratory Volumes and Capacities01:22

Respiratory Volumes and Capacities

2.8K
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...
2.8K
Respiratory Volumes and Capacities I01:26

Respiratory Volumes and Capacities I

1.2K
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...
1.2K
Respiratory Capacities01:24

Respiratory Capacities

891
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...
891

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Oxygen therapy in interstitial lung disease - navigating benefit and burden.

Current opinion in pulmonary medicine·2026
Same author

Magnesium in acute pediatric asthma in the emergency department (MAGICIAN)-A multicentre randomized controlled clinical trial protocol.

PloS one·2026
Same author

Clinical and Radiologic Characteristics of Familial Pulmonary Fibrosis.

Annals of the American Thoracic Society·2026
Same author

Are "Race-Neutral" lung volume prediction equations appropriate? A critical review of the contributions of anthropometric differences and socioeconomic factors to lung volumes.

The European respiratory journal·2026
Same author

Functional testing for interstitial lung disease in 2026.

Current opinion in pulmonary medicine·2026
Same author

Prevalence and outcomes of anxiety and depression in fibrotic interstitial lung disease: a registry-based analysis.

Thorax·2026
Same journal

Symptom prevalence and impact on lung cancer risk in the SUMMIT study.

Chest·2026
Same journal

How I Do It: De-escalation of Prostacyclin-Based Therapy in Patients Treated With Sotatercept.

Chest·2026
Same journal

Eisenmenger Syndrome: The Pulmonology Perspective.

Chest·2026
Same journal

Phenotyping of pulmonary arterial hypertension associated with congenital heart disease using latent class analysis: insights from a national prospective registry.

Chest·2026
Same journal

Septic Shock and GLP-1 Analogue Association in Real World - A Propensity Score Matched Analysis.

Chest·2026
Same journal

PREVALENCE AND RISK FACTORS OF PRESERVED RATIO IMPAIRED SPIROMETRY (PRISm) IN PEOPLE WITH HIV AND MATCHED POPULATION CONTROLS.

Chest·2026
查看所有相关文章

相关实验视频

Updated: Sep 18, 2025

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

5.8K

全球肺功能倡议2023和2012年螺旋计参考值之间的异常差异

Brian L Graham1, Veronica Marcoux1, Yet H Khor2

  • 1Division of Respirology, Critical Care and Sleep Medicine, University of Saskatchewan, Saskatoon, SK.

Chest
|June 24, 2025
PubMed
概括
此摘要是机器生成的。

2023年全球肺功能倡议 (GLI) 螺旋计值可能会高估成年人的肺体积,并低估儿童的肺体积,因为祖先权重. 这会影响不同年龄组的肺功能参考值.

关键词:
预测的价值预测的价值.肺功能测试试验 肺功能测试参考方程 参考方程 参考方程螺旋测量是一种螺旋测量.

更多相关视频

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

878
Combining Volumetric Capnography And Barometric Plethysmography To Measure The Lung Structure-function Relationship
08:25

Combining Volumetric Capnography And Barometric Plethysmography To Measure The Lung Structure-function Relationship

Published on: January 8, 2019

9.5K

相关实验视频

Last Updated: Sep 18, 2025

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

5.8K
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

878
Combining Volumetric Capnography And Barometric Plethysmography To Measure The Lung Structure-function Relationship
08:25

Combining Volumetric Capnography And Barometric Plethysmography To Measure The Lung Structure-function Relationship

Published on: January 8, 2019

9.5K

科学领域:

  • 肺部医学 肺部医学
  • 生物统计学 生物统计学
  • 人口健康 人口健康

背景情况:

  • 全球肺功能倡议 (GLI) 于2012年根据来自健康个体的国际数据,根据四个祖先群体的性别,年龄和身高分层,建立了螺旋计参考值.
  • 在2023年,为整个GLI数据库开发了一套统一的预测螺旋测量值,以独立于祖先.

研究的目的:

  • 调查年龄队伍中不同比例的祖先群体对从2012年和2023年GLI方程中得出的预测螺旋测量值的影响.
  • 评估在2023年GLI方程中使用逆概率权重的后果,对整个年龄范围 (3.5至95岁) 进行评估.

主要方法:

  • 使用了全球肺功能倡议 (GLI) 螺旋计数据库,注意到欧洲祖先的过度代表 (77.4%).
  • 在2023年GLI方程中应用反向概率权重,以近似计算四个祖先群体的平等贡献.
  • 分析了这种权重策略对不同年龄组预测的螺旋计值的影响.

主要成果:

  • 每个祖先群体的参与者比例在各个年龄队伍之间存在显著差异.
  • 预测肺部体积最高的欧洲血统群体在年轻儿童和老年人中贡献率不成比例.
  • 与GLI 2012对个人祖先群体的预测相比,GLI 2023预测的肺体积在老年人中较高,在儿童/青少年中较低.

结论:

  • 在2023年GLI方程中的反向权重策略引入了系统偏差,扭曲了预测的螺旋计值.
  • 这种偏见导致成年人随着年龄的增长逐渐高估预测的肺体积.
  • 相反,它导致儿童和青少年随着年龄的增长逐渐低估预测的肺体积.