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Oxygen therapy with masks or cannulas for spontaneously breathing patients Masahide OHTSUKA 1 1Department of Intensive Care Medicine Yokohama City University Medical Center pp.423-432
Published Date 2018/4/1
DOI https://doi.org/10.11477/mf.3102200516
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For low-flow oxygen therapy, the appropriate device should be selected based on the required fraction of inspired oxygen (FIO2) for an individual patient. Nasal cannulas, simple facemasks, and reservoir masks are indicated for patients who require an FIO2 of 0.4 or less, 0.35 thorough 0.60, and 0.6 or more, respectively. Although the FIO2 can be adjusted by oxygen flow rates, FIO2 may significantly depend on the tidal volume or ventilatory patterns of each patient. Nasal cannulas, which do not add mechanical dead space, may be suitable for patients with impaired elimination of carbon dioxide. For high-flow oxygen therapy, Venturi masks are often used, while a Venturi device with jet nebulizer and heater should be selected for a patient who requires active humidification. Proper application of these devices with sufficient oxygen flow is a key for optimal high flow oxygen therapy.


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電子版ISSN 2186-7852 印刷版ISSN 1883-4833 メディカル・サイエンス・インターナショナル

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