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Related Concept Videos

Administering Oxygen by Nasal Cannula01:29

Administering Oxygen by Nasal Cannula

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Oxygen therapy is critical to patient care, especially for those struggling with respiratory issues. This intervention increases the oxygen concentration in the lungs, enhancing the amount of oxygen transported to the body's tissues. One standard method of delivering supplemental oxygen is through a nasal cannula, a non-invasive device that provides low to medium oxygen concentrations.
Nasal Cannulas
A nasal cannula is a lightweight tube split into two prongs placed in the nostrils,...
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Oxygen Delivering System I: Nasal Cannula and Face Mask01:26

Oxygen Delivering System I: Nasal Cannula and Face Mask

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The human body requires oxygen to function, and when the natural process of respiration is hindered, external devices, including the following, are needed to help deliver this vital gas.
Nasal Cannula
A nasal cannula is a lightweight tube split at one end into two prongs and placed in the nostrils. It is typically used to deliver low to medium levels of oxygen.
Suggested flow rate: The suggested flow rate for a nasal cannula typically ranges between 1 and 6 L/min.
Oxygen percentage setting:...
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Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure01:16

Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure

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Oxygen therapy has emerged as a significant tool in enhancing the quality of life for patients suffering from pulmonary arterial hypertension (PAH). While this therapy has principally been studied on patients with significant hypoxemia, this therapeutic approach helps prevent potential organ damage and can be administered in the comfort of one's home.
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue,...
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Administering Oxygen by Mask01:30

Administering Oxygen by Mask

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Administering Oxygen by Mask
Administering oxygen by mask is a common nursing intervention that provides supplemental oxygen to patients with respiratory distress or chronic lung conditions. This procedure involves delivering oxygen at a specified rate through a face mask connected to an oxygen source.
Equipment
The equipment necessary for this procedure includes:
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Physiological Control of Respiration01:23

Physiological Control of Respiration

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Introduction
Breathing, a seemingly passive process, is regulated by the respiratory center in the brainstem. This center coordinates the involuntary control of respirations, which means it occurs without conscious effort, ensuring a smooth and uninterrupted pattern.
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The body maintains ventilation by monitoring levels of carbon dioxide (CO2), oxygen (O2), and hydrogen ion concentration (pH) in the arterial blood. Among these factors, the level of CO2 plays a crucial...
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Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen01:16

Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen

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Oxygen therapy is a pivotal aspect of medical care, particularly for patients with respiratory ailments. Two prominent oxygen-delivering systems include the Venturi mask and the transtracheal oxygen catheter.
Venturi Mask
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Updated: Sep 22, 2025

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[Operating principles, physiological effects and practical issues of high-flow nasal oxygen therapy].

C Girault1, D Boyer2, G Jolly2

  • 1UNIROUEN, EA-3830, service de médecine intensive et réanimation, hôpitaux de Rouen, Normandie université, CHU, 76000 Rouen, France.

Revue Des Maladies Respiratoires
|May 19, 2022
PubMed
Summary

Heated and humidified high-flow nasal oxygen therapy (HFNO) offers an alternative to standard oxygen for acute respiratory failure (ARF). While improving oxygenation and breathing comfort, close patient monitoring remains crucial.

Keywords:
Acute respiratory failureAspects pratiquesEffets physiologiquesHeated and humidified high-flow nasal oxygen therapyInsuffisance respiratoire aiguëOxygénothérapie humidifiée et réchauffée à haut débitPhysiological effectsPractical issuesRéglagesSettings

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Area of Science:

  • Respiratory Medicine
  • Critical Care Medicine
  • Pulmonology

Background:

  • Standard oxygen therapy has limitations in treating acute respiratory failure (ARF).
  • Heated and humidified high-flow nasal oxygen therapy (HFNO) has emerged as a significant advancement.
  • HFNO offers improved patient comfort and physiological benefits over traditional methods.

Purpose of the Study:

  • To review the technical characteristics and physiological effects of HFNO.
  • To highlight the clinical applications of HFNO in ARF management.
  • To emphasize the importance of continued patient monitoring during HFNO therapy.

Main Methods:

  • Review of HFNO technology and its physiological impact.
  • Analysis of clinical scenarios where HFNO is indicated.
  • Discussion of the principles of HFNO delivery via nasal cannula.

Main Results:

  • HFNO delivers up to 100% oxygen (FiO2) at high flow rates (50-70 L/min) with optimal heating and humidification.
  • Physiological effects include improved oxygenation and ventilatory mechanics.
  • HFNO provides significant respiratory comfort to patients.

Conclusions:

  • HFNO is a valuable tool for first-line treatment of hypoxemic ARF.
  • The ease of use and comfort of HFNO should not lead to complacency in patient monitoring.
  • Endotracheal intubation decisions must not be delayed when clinically indicated.