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Related Concept Videos

Respiratory Capacities01:24

Respiratory Capacities

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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...
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Pulmonary Function Tests01:25

Pulmonary Function Tests

364
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...
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Respiratory Volumes01:15

Respiratory Volumes

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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...
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Pulse Oximetry01:24

Pulse Oximetry

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Pulse oximetry, or SpO2, is a non-invasive method for continuously monitoring arterial oxygen saturation (SaO2). This procedure involves attaching a probe or sensor to the patient's fingertip, forehead, earlobe, or nose bridge. The sensor works by detecting changes in oxygen saturation levels through light signals generated by the oximeter and reflected by the pulsing blood under the probe.
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
357
Respiratory Volumes and Capacities I01:26

Respiratory Volumes and Capacities I

1.0K
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...
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Respiratory Volumes and Capacities01:22

Respiratory Volumes and Capacities

2.1K
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...
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Related Experiment Video

Updated: Jul 16, 2025

High-Resolution Respirometry to Assess Bioenergetics in Cells and Tissues Using Chamber- and Plate-Based Respirometers
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Crystal ribcage: a platform for probing real-time lung function at cellular resolution.

Rohin Banerji1, Gabrielle N Grifno1, Linzheng Shi1

  • 1Department of Biomedical Engineering, Boston University, Boston, MA, USA.

Nature Methods
|September 14, 2023
PubMed
Summary
This summary is machine-generated.

Researchers developed a transparent crystal ribcage for real-time, multiscale optical imaging of the lung. This innovation allows detailed study of pulmonary diseases and potential new treatment targets.

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Area of Science:

  • Pulmonary medicine
  • Biomedical engineering
  • Optical imaging

Background:

  • Studying lung diseases requires real-time cellular-level imaging.
  • Current intravital imaging techniques face challenges in visualizing the lung during respiration and circulation.

Purpose of the Study:

  • To introduce a novel transparent ribcage for advanced optical imaging of the lung.
  • To enable multiscale imaging from the whole organ to single-cell level in real time.
  • To facilitate investigation of pulmonary diseases and therapeutic strategies.

Main Methods:

  • Development of a transparent crystal ribcage.
  • Multiscale optical imaging of the lung in murine models.
  • Modulation of lung biophysics and immunity via various interventions.
  • Preservation of lung architecture, cellular diversity, and respiratory-circulatory functions.

Main Results:

  • The crystal ribcage enables real-time, multiscale optical imaging of the functioning lung.
  • It allows for detailed interventions and preserves crucial lung characteristics.
  • Studies on pulmonary pathologies revealed remodeling of respiratory-circulatory functions at the alveolar and capillary levels.

Conclusions:

  • The crystal ribcage is a significant advancement for studying lung physiology and disease.
  • It offers broad applications for investigating various pulmonary conditions.
  • This technology can accelerate the identification of novel therapeutic targets for lung diseases.