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Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen

Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen

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
The Venturi mask, named after the Venturi effect, is designed to deliver precise oxygen concentrations. It consists of a large tube with an oxygen inlet that narrows down, causing a pressure drop that pulls air in through adjustable side ports. The mask is a lightweight,...

Oxygen Delivering System III: Tracheostomy and T-piece

Oxygen Delivering System III: Tracheostomy and T-piece

Oxygen delivery is critical in clinical care, especially for patients with respiratory disorders or those undergoing surgical procedures. Various systems, such as tracheostomy and the T-piece, deliver oxygen to the lungs, ensuring adequate arterial oxygenation.
Tracheostomy
A tracheostomy is a surgically created opening (stoma) in the anterior part of the trachea. It is used to establish a patient airway, bypass an upper airway obstruction, simplify the removal of secretions, permit long-term...

Administering Oxygen by Mask

Administering Oxygen by Mask

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:

Oxygen Delivering System I: Nasal Cannula and Face Mask

Oxygen Delivering System I: Nasal Cannula and Face Mask

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:...

Respiratory Assessment: Purpose and Indications

Respiratory Assessment: Purpose and Indications

Respiratory assessment is a cornerstone of nursing assessments, crucial for the early detection of patient deterioration. This evaluation transcends routine procedures, representing a critical skill nurses must master to ensure optimal patient care.
Objectives and Importance:
The primary goal of respiratory assessment is to evaluate patients at early risk of clinical deterioration. Since respiratory distress often precedes other signs of declining health, breathing patterns and sounds become a...

Oxygen Transport in the Blood

Oxygen Transport in the Blood

Hemoglobin (Hb) is a crucial molecule in the human body, consisting of four polypeptide chains, each bound to an iron-containing heme group. This unique structure enables hemoglobin to bind to oxygen, with each molecule capable of combining with four molecules of oxygen, leading to rapid and reversible oxygen loading. When fully loaded with oxygen, it is called oxyhemoglobin, while hemoglobin that has released oxygen is called reduced hemoglobin or deoxyhemoglobin. As hemoglobin binds oxygen,...

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Related Experiment Video

Updated: Jan 13, 2026

An Educational Video Demonstration of How to Prone a Critically Ill Intubated Patient

An Educational Video Demonstration of How to Prone a Critically Ill Intubated Patient

Published on: November 30, 2022

Preoxygenation in the ICU.

Clément Monet^1,2, Mathieu Capdevila^1,2, Inès Lakbar^1,2

¹Department of Anaesthesiology and Critical Care Medicine, Saint-Eloi Hospital, University Teaching Hospital of Montpellier, 80 Avenue Augustin Fliche, 34295 Montpellier, France.

Journal of Clinical Medicine

|October 29, 2025

Summary

This summary is machine-generated.

Optimizing preoxygenation, the process of increasing oxygen reserves before tracheal intubation, is crucial for patient safety in the intensive care unit (ICU). Non-invasive ventilation (NIV) and high-flow nasal cannula (HFNC) offer superior oxygenation compared to standard methods.

Keywords:

high flow nasal cannula hypoxemia intensive care non invasive ventilation preoxygenation tracheal intubation

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Area of Science:

Critical Care Medicine
Respiratory Therapy
Anesthesiology

Background:

Tracheal intubation in the intensive care unit (ICU) is a high-risk procedure often performed emergently.
Hypoxemia is a frequent complication, significantly impacting patient morbidity and mortality.
Effective preoxygenation is vital for safe airway management in critically ill patients.

Purpose of the Study:

To review the advantages and limitations of various preoxygenation strategies in the ICU.
To provide practical guidance for optimizing airway management and patient safety.
To enhance understanding of preoxygenation techniques for clinicians.

Main Methods:

Review of conventional and advanced preoxygenation methods.
Analysis of randomized controlled trials, including the PREOXY study.
Comparison of facemask preoxygenation, non-invasive ventilation (NIV), and high-flow nasal cannula (HFNC).

Main Results:

Non-invasive ventilation (NIV) is superior to facemask preoxygenation in reducing desaturation during intubation.
High-flow nasal cannula (HFNC) is a valuable alternative when NIV is contraindicated.
Combined NIV and HFNC approaches may offer enhanced efficacy.

Conclusions:

Preoxygenation is a critical, individualized intervention to mitigate ICU intubation risks.
Clinicians should be familiar with diverse preoxygenation methods to tailor strategies.
Optimizing oxygenation through advanced techniques improves patient safety during intubation.