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Pulse Oximetry
A non-invasive method to measure the oxygen saturation level of the blood, indicating how well oxygen is being delivered to parts of the body furthest from the heart.
Dyspnea
Difficulty or discomfort in breathing, often described as shortness of breath.
Ventilator
A machine that supports or takes over breathing for patients who are unable to breathe adequately on their own.
Respirator
A device designed to protect the wearer from inhaling harmful dust, fumes, vapors, or gases.
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