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Related Concept Videos

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:...
315
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
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,...
565
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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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:
342
Pulse Oximetry01:24

Pulse Oximetry

328
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...
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Special considerations while measuring oxygen saturation01:19

Special considerations while measuring oxygen saturation

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Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
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Related Experiment Video

Updated: Jun 30, 2025

Quantitative Mapping of Specific Ventilation in the Human Lung using Proton Magnetic Resonance Imaging and Oxygen as a Contrast Agent
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Improving Breath Detection From Pulsed-Flow Oxygen Sources Using a New Nasal Interface.

Cole D Christianson1, Efrem Violato2, Mozhgan Sabz3

  • 1Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta, Canada cdchrist@ualberta.ca.

Respiratory Care
|March 19, 2024
PubMed
Summary

A new nasal interface improves oxygen delivery for patients needing long-term oxygen therapy (LTOT). This device enhances breath detection with portable oxygen systems, boosting mobility and independence for individuals with lung diseases.

Keywords:
COPDbreath detectionoxygen therapyoxygen-conserving devicesportable oxygen concentrators

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Area of Science:

  • Pulmonary Medicine
  • Biomedical Engineering
  • Respiratory Care

Background:

  • Long-term oxygen therapy (LTOT) is crucial for patients with COPD and other lung diseases.
  • Portable oxygen sources are essential for patient autonomy and mobility.
  • Current portable oxygen equipment presents limitations impacting patient independence.

Purpose of the Study:

  • To evaluate a novel nasal interface designed to improve breath detection and triggering efficiency in portable pulsed-flow oxygen devices.
  • To assess the impact of the new interface on patient mobility and independence during LTOT.

Main Methods:

  • Eight respiratory therapists tested the new nasal interface against a standard cannula using various oxygen sources (tank, SimplyGo Mini POC, OxyGo NEXT POC) and breathing types (nasal, oral).
  • Trials were video recorded to match breaths with oxygen pulses, calculating triggering success rates.
  • Participants rated perceived breathing resistance after each trial.

Main Results:

  • Nasal breathing yielded higher triggering success rates than oral breathing for pulsed-flow devices.
  • Portable oxygen concentrators (POCs) showed superior triggering success compared to oxygen tanks with conserving devices.
  • The novel nasal interface demonstrated enhanced triggering success rates over the standard cannula, with manageable perceived breathing resistance.

Conclusions:

  • The new nasal interface effectively improves the triggering success rates of pulsed-flow oxygen devices.
  • Further patient trials are recommended to determine the clinical significance of these findings for LTOT delivery.