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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. 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 ...

  4. How to Exercise When You Have COPD - AOL

    www.aol.com/exercise-copd-143308318.html

    The disease affects people at different fitness levels, and patients with COPD may have additional illnesses like heart disease, osteoporosis, and anemia that should be considered when crafting an ...

  5. Obstructive lung disease - Wikipedia

    en.wikipedia.org/wiki/Obstructive_lung_disease

    COPD is defined as a forced expiratory volume in 1 second divided by the forced vital capacity (FEV1/FVC) that is less than 0.7 (or 70%). [8] The residual volume, the volume of air left in the lungs following full expiration, is often increased in COPD, as is the total lung capacity, while the vital capacity remains relatively normal.

  6. Ventilation/perfusion ratio - Wikipedia

    en.wikipedia.org/wiki/Ventilation/perfusion_ratio

    The actual values in the lung vary depending on the position within the lung. If taken as a whole, the typical value is approximately 0.8. [4] Because the lung is centered vertically around the heart, part of the lung is superior to the heart, and part is inferior. This has a major impact on the V/Q ratio: [5] apex of lung – higher; base of ...

  7. Health effects of tobacco - Wikipedia

    en.wikipedia.org/wiki/Health_effects_of_tobacco

    First signs of smoking-related health issues often show up as numbness in the extremities, with smoking being a major risk factor for heart attacks, chronic obstructive pulmonary disease (COPD), emphysema, and cancer, particularly lung cancer, cancers of the larynx and mouth, and pancreatic cancer. [20]

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