Related Experiment Video

Updated: Aug 16, 2026

Assessment of Pulmonary Capillary Blood Volume, Membrane Diffusing Capacity, and Intrapulmonary Arteriovenous Anastomoses During Exercise
07:09

Assessment of Pulmonary Capillary Blood Volume, Membrane Diffusing Capacity, and Intrapulmonary Arteriovenous Anastomoses During Exercise

Published on: February 20, 2017

Measurement of closing volume in apneic subjects

C L Waltemath, N A Bergman

    Critical Care Medicine
    |May 1, 1976
    PubMed

    More Related Videos

    Combining Volumetric Capnography And Barometric Plethysmography To Measure The Lung Structure-function Relationship08:25

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

    Published on: January 8, 2019

    Closed Chest Biventricular Pressure-Volume Loop Recordings with Admittance Catheters in a Porcine Model07:56

    Closed Chest Biventricular Pressure-Volume Loop Recordings with Admittance Catheters in a Porcine Model

    Published on: May 18, 2021

    Related Concept Videos

    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.
    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 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...
    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:
    Respiratory Capacities01:24

    Respiratory Capacities

    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...
    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...