Jove
Visualize
Contact Us
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 Concept Videos

Exercise Stress Test01:26

Exercise Stress Test

2.3K
Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
2.3K
Hyperpnea and Hyperventilation01:25

Hyperpnea and Hyperventilation

4.1K
Hyperventilation refers to a higher-than-normal rate and depth of breathing, often associated with anxiety attacks. This excessive breathing surpasses the body's need to expel CO2, leading to a condition known as hypocapnia - an unusually low level of carbon dioxide in the blood. Hypocapnia can constrict cerebral blood vessels, reducing blood flow to the brain, which may result in dizziness or fainting. Early signs include tingling and muscle spasms in the hands and face, caused by falling...
4.1K
Respiratory System Abnormal Finding I: Inspection and Percussion01:30

Respiratory System Abnormal Finding I: Inspection and Percussion

1.2K
Respiratory system abnormalities are a significant concern in healthcare due to their potential to indicate underlying severe conditions like Chronic Obstructive Pulmonary Disease (COPD), asthma, and pneumonia. These abnormalities can often be detected through physical examination methods like inspection and percussion.
Inspection Findings
During an inspection, several findings may suggest the presence of respiratory distress or disease. Pursed-lip breathing, where exhalation is slowed by...
1.2K
Pulmonary Function Tests01:25

Pulmonary Function Tests

1.2K
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...
1.2K
Respiratory Volumes and Capacities I01:26

Respiratory Volumes and Capacities I

2.0K
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...
2.0K
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

790
Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
790

You might also read

Related Articles

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

Sort by
Same author

[Observance of antifibrotic treatment in the French OPALE support program for patients with pulmonary fibrosis].

Revue des maladies respiratoires·2026
Same author

[Use of fluticasone/umeclidinium/vilanterol in France: A population based study].

Revue des maladies respiratoires·2025
Same author

[Physical activity and pulmonary rehabilitation in adults with asthma].

Revue des maladies respiratoires·2021
Same author

Expectations about treatment of idiopathic pulmonary fibrosis: Comparative survey of patients, carers and physicians (the RESPIR French survey).

Respiratory medicine and research·2021
Same author

The 1-minute sit-to-stand test to evaluate quadriceps muscle strength in patients with interstitial lung disease.

Respiratory medicine and research·2020
Same author

Pulmonary rehabilitation and daily life physical activity in patients with stage IV sarcoidosis.

Respiratory medicine and research·2020

Related Experiment Video

Updated: May 5, 2026

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

1.5K

[Cardiopulmonary exercise testing and unexpected dyspnea].

B Aguilaniu1, G Tercé, B Wallaert

  • 1Faculté de médecine, université Joseph-Fourrier, domaine de La Merci, avenue des Maquis de Grésivaudan, 38706 La Tronche cedex, France; Department of Physical Education, McGill University, Montréal, Canada.

Revue Des Maladies Respiratoires
|December 10, 2013
PubMed
Summary

Cardiopulmonary exercise testing (CPET) is crucial for diagnosing the causes of shortness of breath in individuals with no significant medical history. This diagnostic tool effectively identifies underlying disorders, avoiding unnecessary tests.

Keywords:
Cardiopulmonary exercise testingDyspneaDyspnéeExerciceExerciseExploration fonctionnelle

More Related Videos

Effects of Surgical Masks on Cardiopulmonary Function in Healthy Subjects
06:57

Effects of Surgical Masks on Cardiopulmonary Function in Healthy Subjects

Published on: February 12, 2021

3.1K
Home-Based Prescribed Pulmonary Exercise in Patients with Stable Chronic Obstructive Pulmonary Disease
07:10

Home-Based Prescribed Pulmonary Exercise in Patients with Stable Chronic Obstructive Pulmonary Disease

Published on: August 24, 2019

9.4K

Related Experiment Videos

Last Updated: May 5, 2026

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

1.5K
Effects of Surgical Masks on Cardiopulmonary Function in Healthy Subjects
06:57

Effects of Surgical Masks on Cardiopulmonary Function in Healthy Subjects

Published on: February 12, 2021

3.1K
Home-Based Prescribed Pulmonary Exercise in Patients with Stable Chronic Obstructive Pulmonary Disease
07:10

Home-Based Prescribed Pulmonary Exercise in Patients with Stable Chronic Obstructive Pulmonary Disease

Published on: August 24, 2019

9.4K

Area of Science:

  • Cardiopulmonary medicine
  • Diagnostic procedures

Background:

  • Dyspnea is a common symptom requiring accurate diagnosis.
  • Cardiopulmonary exercise testing (CPET) is a key diagnostic modality.
  • Identifying the cause of dyspnea is essential for effective management.

Observation:

  • A 68-year-old man experienced severe dyspnea during leisure hiking.
  • A 25-year-old cyclist reported disabling dyspnea while racing.
  • A 37-year-old woman developed persistent dyspnea 6 months postpartum.

Findings:

  • CPET identified the specific mechanisms causing dyspnea in all three patients.
  • The diagnostic yield of CPET was high in these diverse clinical scenarios.
  • CPET provided a definitive diagnosis without necessitating further investigations.

Implications:

  • CPET is valuable for diagnosing dyspnea in patients with no prior significant medical history.
  • This testing modality can guide targeted treatment strategies.
  • CPET offers an efficient and effective diagnostic pathway for unexplained dyspnea.