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

Respiratory Volumes01:15

Respiratory Volumes

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...
Respiratory Volumes and Capacities I01:26

Respiratory Volumes and Capacities I

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...
Respiratory Volumes and Capacities01:22

Respiratory Volumes and Capacities

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...
Lung Capacity01:47

Lung Capacity

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.
Pulmonary Ventilation: Inhalation01:24

Pulmonary Ventilation: Inhalation

Pulmonary ventilation is a vital process that ensures the exchange of oxygen and carbon dioxide in the lungs. It refers to the movement of air into and out of the lungs, enabling the body to obtain oxygen and remove waste carbon dioxide. In this article, we will explore the intricacies of pulmonary ventilation, including its underlying principles, mechanisms, and the interplay of pressures within the respiratory system.
Boyle's law becomes particularly pertinent when examining respiratory...
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:

You might also read

Related Articles

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

Sort by
Same author

A Student-Centered Approach Towards Implementing Large Language Models (LLMs) in Medical Education.

Medical science educator·2026
Same author

Where Feedback Meets Belonging: A Learner's Perspective on Engagement in Medical Education at a US MD-Granting Institution.

Teaching and learning in medicine·2026
Same author

Outcomes from a Longitudinal Palliative Care Curriculum for Medical Students.

Journal of palliative medicine·2026
Same author

When structure mattered more than authorship: Lessons from developing a generative AI Tool for high-stakes multiple-choice question generation.

Medical education·2026
Same author

Inequities in the National Clinical Assessment Tool for Medical Students in the Emergency Department.

The western journal of emergency medicine·2025
Same author

Interprofessional Mechanical Ventilation Education for Critical Care Trainees: A Pilot Curriculum.

ATS scholar·2025

Related Experiment Video

Updated: May 19, 2026

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

Lung volumes: measurement, clinical use, and coding.

Judd D Flesch1, C Jessica Dine1

  • 1Division of Pulmonary, Allergy and Critical Care, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA.

Chest
|August 9, 2012
PubMed
Summary

Pulmonary function testing measures lung volumes like residual volume (RV), functional residual capacity (FRC), and total lung capacity (TLC) using specialized methods. These measurements aid in diagnosing restrictive and obstructive lung diseases.

More Related Videos

Measuring Pressure Volume Loops in the Mouse
09:15

Measuring Pressure Volume Loops in the Mouse

Published on: May 2, 2016

Related Experiment Videos

Last Updated: May 19, 2026

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

Measuring Pressure Volume Loops in the Mouse
09:15

Measuring Pressure Volume Loops in the Mouse

Published on: May 2, 2016

Area of Science:

  • Pulmonary Medicine
  • Respiratory Physiology

Background:

  • Lung volume measurement is crucial for comprehensive pulmonary function testing.
  • Certain lung volumes, including residual volume (RV), functional residual capacity (FRC), and total lung capacity (TLC), necessitate specialized techniques beyond standard spirometry.

Purpose of the Study:

  • To outline the methods for measuring key lung volumes (RV, FRC, TLC).
  • To explain the clinical applications of lung volume measurements in diagnosing lung conditions.
  • To address the administrative aspects of reimbursement, including Current Procedural Terminology (CPT) codes.

Main Methods:

  • Functional residual capacity (FRC) is typically determined using body plethysmography (Boyle's Law), inert gas dilution, or nitrogen washout.
  • Residual volume (RV) and total lung capacity (TLC) are calculated after measuring FRC, expiratory reserve volume, and inspiratory vital capacity.

Main Results:

  • Lung volumes are essential for diagnosing restrictive lung diseases.
  • In obstructive lung disease, lung volumes help assess hyperinflation.
  • Abnormal lung volumes can indicate various other clinical conditions.

Conclusions:

  • Accurate measurement of lung volumes requires understanding specific techniques and their applications.
  • Knowledge of CPT codes, indications, and physician supervision is necessary for reimbursement.
  • Recent changes have consolidated previous CPT codes for lung function tests into fewer, broader codes.