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

Pulmonary Cycle: Exhalation01:17

Pulmonary Cycle: Exhalation

4.2K
In terms of human respiration, the act of expelling air, known as exhalation (or expiration), operates on the principle of pressure gradients. During expiration, the pressure within the lungs exceeds that of the surrounding atmosphere. Under normal conditions, quiet breathing involves passive exhalation and is free of muscular contractions. This is because the exhalation process is driven by the natural elastic recoil of the lungs and chest wall, both of which have an inherent tendency to...
4.2K
Respiratory System Abnormal Finding I: Inspection and Percussion01:30

Respiratory System Abnormal Finding I: Inspection and Percussion

911
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...
911
Hyperpnea and Hyperventilation01:25

Hyperpnea and Hyperventilation

3.2K
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...
3.2K
Breathing01:05

Breathing

65.0K
The process of breathing, inhaling and exhaling, involves the coordinated movement of the chest wall, the lungs, and the muscles that move them. Two muscle groups with important roles in breathing are the diaphragm, located directly below the lungs, and the intercostal muscles, which lie between the ribs. When the diaphragm contracts, it moves downward, increasing the volume of the thoracic cavity and creating more room for the lungs to expand. When the intercostal muscles contract, the ribs...
65.0K
Respiratory Volumes and Capacities I01:26

Respiratory Volumes and Capacities I

1.8K
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...
1.8K
Acute Respiratory Failure-IV01:23

Acute Respiratory Failure-IV

618
Respiratory failure can manifest suddenly or gradually, characterized by a rapid decline in PaO2 and a rapid rise in PaCO2. This situation indicates a severe respiratory problem that may quickly become a life-threatening emergency. One of the early signs of hypoxemic Acute Respiratory Failure (ARF) is a change in mental status due to the brain's sensitivity to oxygen levels and changes in acid-base balance. Symptoms such as restlessness, confusion, and agitation suggest inadequate oxygen...
618

You might also read

Related Articles

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

Sort by
Same author

Risks and Familial Coaggregation of Autism Spectrum Disorder Among First-Degree Relatives of Individuals With Colorectal Cancer.

Psychiatry investigation·2026
Same author

Adverse Childhood Experiences and Psychological Health in Patients with Myasthenia Gravis: A Study Incorporating an Online Positive Mental Health Learning Program.

Healthcare (Basel, Switzerland)·2026
Same author

Monocyte Distribution Width as a Biomarker for Predicting Bacteremia: A Retrospective Study in the Emergency Department.

Life (Basel, Switzerland)·2026
Same author

Comparative Tumor Microenvironment Analysis for HCC and PDAC Using KMplotter.

International journal of molecular sciences·2025
Same author

Role of endoscopic ultrasonography or magnetic resonance imaging for screening of pancreatic cancer in low-risk individuals.

World journal of clinical oncology·2025
Same author

Athletic pseudonephritis in male cross-country ultra-marathoners: a comparative observational study.

Frontiers in physiology·2025
Same journal

Common on "Polypoid endometriosis in a young female with systemic lupus erythematosus, mimicking ovarian and pelvic malignancy, a case report".

Taiwanese journal of obstetrics & gynecology·2026
Same journal

45,X/47,XXX at amniocentesis and detection of disomy X cell line by fluorescence in situ hybridization in uncultured amniocytes and various tissues in a pregnancy with a favorable fetal outcome and perinatal decrease of the 45,X cell line.

Taiwanese journal of obstetrics & gynecology·2026
Same journal

Low-level mosaic trisomy 21 at amniocentesis in a pregnancy associated with a favorable fetal outcome and perinatal progressive decrease of the trisomy 21 cell line.

Taiwanese journal of obstetrics & gynecology·2026
Same journal

High-level mosaic trisomy 21 at amniocentesis associated with positive NIPT for trisomy 21 in a pregnancy with postnatal decrease of the trisomy 21 cell line and a favorable fetal outcome.

Taiwanese journal of obstetrics & gynecology·2026
Same journal

Low-level mosaic trisomy 15 without UPD 15 at amniocentesis associated with cytogenetic discrepancy between uncultured amniocytes and cultured amniocytes, IUGR, preterm birth and preeclampsia in a pregnancy with a favorable fetal outcome and perinatal decrease of the trisomy 15 cell line.

Taiwanese journal of obstetrics & gynecology·2026
Same journal

Prenatal diagnosis of a familial 3p26.3p26.1 deletion in a pregnancy associated with no apparently phenotypic abnormality in the family carrier members.

Taiwanese journal of obstetrics & gynecology·2026
See all related articles

Related Experiment Video

Updated: Feb 24, 2026

Continuous Telemetric In Utero Tracheal Pressure Measurements in Fetal Lambs
05:40

Continuous Telemetric In Utero Tracheal Pressure Measurements in Fetal Lambs

Published on: December 22, 2023

619

Dyspnea in pregnancy.

Shih-Yi Lee1, Ding-Kuo Chien2, Chien-Hsuan Huang3

  • 1Division of Pulmonary and Critical Care Medicine, Mackay Memorial Hospital, Taiwan; Department of Nursing, Mackay Junior College of Medicine, Nursing, and Management, Taipei, Taiwan; Department of Medicine, Mackay Medical College, Taipei, Taiwan; Department of Internal Medicine, Mackay Memorial Hospital, Taiwan.

Taiwanese Journal of Obstetrics & Gynecology
|August 15, 2017
PubMed
Summary
This summary is machine-generated.

Dyspnea, or shortness of breath, is common in pregnancy due to body changes. Understanding respiratory system adaptations aids in distinguishing normal pregnancy symptoms from serious complications.

Keywords:
Pulmonary function testRespirationVentilation

More Related Videos

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

10.6K
Author Spotlight: Traditional Chinese Medicine for Sleep Disorders in Acute COPD — A Safe, Cost-Effective Approach
04:53

Author Spotlight: Traditional Chinese Medicine for Sleep Disorders in Acute COPD — A Safe, Cost-Effective Approach

Published on: October 18, 2024

1.5K

Related Experiment Videos

Last Updated: Feb 24, 2026

Continuous Telemetric In Utero Tracheal Pressure Measurements in Fetal Lambs
05:40

Continuous Telemetric In Utero Tracheal Pressure Measurements in Fetal Lambs

Published on: December 22, 2023

619
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

10.6K
Author Spotlight: Traditional Chinese Medicine for Sleep Disorders in Acute COPD — A Safe, Cost-Effective Approach
04:53

Author Spotlight: Traditional Chinese Medicine for Sleep Disorders in Acute COPD — A Safe, Cost-Effective Approach

Published on: October 18, 2024

1.5K

Area of Science:

  • Obstetrics and Gynecology
  • Respiratory Medicine
  • Physiology

Background:

  • Dyspnea is a frequent symptom during pregnancy.
  • It can stem from physiological adaptations or pathological conditions.
  • Accurate diagnosis is crucial for maternal and fetal well-being.

Purpose of the Study:

  • To elucidate the physiological mechanisms underlying respiratory changes in pregnancy.
  • To differentiate normal pregnancy-related dyspnea from dyspnea caused by complications.
  • To enhance clinical understanding for improved diagnostic accuracy.

Main Methods:

  • Review of physiological adaptations in the respiratory system during pregnancy.
  • Analysis of common causes of dyspnea in pregnant individuals.
  • Comparison of symptoms and diagnostic criteria for normal versus pathological dyspnea.

Main Results:

  • Pregnancy induces significant anatomical and functional changes in the respiratory system.
  • Increased tidal volume and respiratory rate are common physiological responses.
  • Certain conditions like pulmonary embolism or asthma exacerbations present as pathological dyspnea.

Conclusions:

  • Understanding respiratory system adaptations is key to managing dyspnea in pregnancy.
  • Distinguishing physiological from pathological dyspnea improves patient care.
  • Further research into specific mechanisms can refine diagnostic approaches.