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2. Effect of oxygen on chronic obstructive pulmonary disease

   en.wikipedia.org/wiki/Effect_of_oxygen_on...

   Treatment with supplemental oxygen may improve their well-being; alternatively, in some this can lead to the adverse effect of elevating the carbon dioxide content in the blood (hypercapnia) to levels that may become toxic. [3] [4] With normal lung function, a stimulation to take another breath occurs when a patient has a slight rise in PaCO 2.

3. Immediately dangerous to life or health - Wikipedia

   en.wikipedia.org/wiki/Immediately_dangerous_to...

   Examples include high altitudes and unventilated, confined spaces. The OSHA definition is arguably broad enough to include oxygen-deficient circumstances in the absence of "airborne contaminants", as well as many other chemical, thermal, or pneumatic hazards to life or health (e.g., pure helium, super-cooled or super-heated air, hyperbaric or ...

4. Hyperoxia - Wikipedia

   en.wikipedia.org/wiki/Hyperoxia

   Hyperoxia is the state of being exposed to high levels of oxygen; it may refer to organisms, cells and tissues that are experiencing excessive oxygenation, [1] or to an abnormally high oxygen concentration in an environment (e.g. a body of water).

5. Chronic obstructive pulmonary disease - Wikipedia

   en.wikipedia.org/wiki/Chronic_obstructive...

   Chronic obstructive pulmonary disease (COPD) is a type of progressive lung disease characterized by chronic respiratory symptoms and airflow limitation. [8] GOLD 2024 defined COPD as a heterogeneous lung condition characterized by chronic respiratory symptoms (dyspnea or shortness of breath, cough, sputum production and/or exacerbations) due to abnormalities of the airways (bronchitis ...

6. Hypoxemia - Wikipedia

   en.wikipedia.org/wiki/Hypoxemia

   Additionally, oxygen in a confined space can be consumed if carbon dioxide scrubbers are used without sufficient attention to supplementing the oxygen which has been consumed. Hypoxic or anoxic breathing gas mixtures, and exposure to a vacuum or other extreme low pressure environment will remove oxygen from the blood in the alveoli. [18]

7. What Is a Normal Oxygen Level and How Can I Check Mine? - AOL

   www.aol.com/normal-oxygen-level-check-mine...

   To date, Dr. Uppal says he’s overseen the treatment of more than 300 Covid-19 patients, all with varying levels of blood oxygen. What is a good oxygen level? “Normal people who have working ...