Nasal Cannula: Overview, Uses & Complications - Verywell Health
https://www.verywellhealth.com/nasal-cannulas-914867
WebNov 13, 2023 · Nasal cannulas are medical devices used when people are unable to get sufficient oxygen to keep their body functioning optimally, whether that's due to a condition like chronic obstructive pulmonary disease ( COPD ), another respiratory disorder, or an environmental change.
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