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Meeting ReportOxygen Therapy

FIO2 Capability of a Procedural Oxygen Mask During Different Breathing Patterns and Oxygen Flows

Darla Merrett, Elizabeth Knox, Lura Thach, Taylor Beckett, Brandon Burk and Aaron Light
Respiratory Care October 2019, 64 (Suppl 10) 3239438;
Darla Merrett
Respiratory Therapy, Ozarks Technical Community College, Springfield, Missouri, United States
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Elizabeth Knox
Respiratory Therapy, Ozarks Technical Community College, Springfield, Missouri, United States
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Lura Thach
Respiratory Therapy, Ozarks Technical Community College, Springfield, Missouri, United States
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Taylor Beckett
Respiratory Therapy, Ozarks Technical Community College, Springfield, Missouri, United States
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Brandon Burk
Respiratory Therapy, Ozarks Technical Community College, Springfield, Missouri, United States
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Aaron Light
Respiratory Therapy, Ozarks Technical Community College, Springfield, Missouri, United States
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Abstract

Background: The Procedural Oxygen Mask (POM) is a multiport mask that is designed to allow scopes, probes, and tubes through the mask and into the mouth or nose while claiming to deliver high levels of oxygen. The goal of this study was to determine the actual O2 delivery at the carina while wearing the POM mask at different flows, breathing patterns, and integrity of the masks oral access membrane. Our hypothesis is that there will be no difference in O2 delivery at the carina from the POM based on breathing pattern, flow, or status of the POM masks oral membrane. Methods: A bench model was created by adapting an adult intubation manikin (Armstrong Medical Industries, Lincolnshire, IL) to an Ingmar Medical ASL 5000 (Pittsburgh, PA) breathing simulator. Tygon tubing and appropriate adapters connected the manikin’s trachea with the breathing simulator’s outlet so that as the simulator operates, air flows in and out through the manikin’s mouth and nares. A TED 60T O2 analyzer was connected to the simulated carina of a mannequin. The POM was secured to the face of the mannequin with manufacturer provided equipment and connected to an O2 flow meter. The lung simulator was set at respiratory rates of 6, 12 and 25 breaths/min, and tidal volumes were set at 300 mL, 600 mL, and 925 mL, respectively. The flow meter was set to a flow of 10, 12, or 15 L/min with the manufacturer provided high flow adapter. The FIO2 was measured by the analyzer for each breathing pattern. First with the membrane of the mask completely intact, then with a bronchoscope inserted with the aid of 0.045 oz PDI lubricating jelly, and lastly post mock bronchoscopy with membrane no longer intact. The O2 analyzer was calibrated between each reading. Results: Statistical difference was found in the mean delivered FIO2 between breathing patterns, flow meter settings, and if the masks membrane was intact. However, after the membrane is perforated the patients breathing pattern and O2 flow are the primary factors that impact FIO2 delivery. Average range of delivered FIO2 across all runs was 38-84%. Conclusions: Delivered FIO2 varied from 38-84% using the POM mask. The FIO2 delivered by the POM mask is impacted by breathing pattern, flow of oxygen and intactness of membrane. During clinical use providers should be aware of this range and how these factors will impact the delivered FIO2.

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  • Copyright © 2019 by Daedalus Enterprises
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Respiratory Care
Vol. 64, Issue Suppl 10
1 Oct 2019
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FIO2 Capability of a Procedural Oxygen Mask During Different Breathing Patterns and Oxygen Flows
Darla Merrett, Elizabeth Knox, Lura Thach, Taylor Beckett, Brandon Burk, Aaron Light
Respiratory Care Oct 2019, 64 (Suppl 10) 3239438;

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FIO2 Capability of a Procedural Oxygen Mask During Different Breathing Patterns and Oxygen Flows
Darla Merrett, Elizabeth Knox, Lura Thach, Taylor Beckett, Brandon Burk, Aaron Light
Respiratory Care Oct 2019, 64 (Suppl 10) 3239438;
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