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  2. Wheeze - Wikipedia

    en.wikipedia.org/wiki/Wheeze

    A wheeze is a clinical symptom of a continuous, coarse, whistling sound produced in the respiratory airways during breathing. [1] For wheezes to occur, part of the respiratory tree must be narrowed or obstructed (for example narrowing of the lower respiratory tract in an asthmatic attack), or airflow velocity within the respiratory tree must be heightened.

  3. Bronchospasm - Wikipedia

    en.wikipedia.org/wiki/Bronchospasm

    The resulting constriction and inflammation causes a narrowing of the airways and an increase in mucus production; this reduces the amount of oxygen that is available to the individual causing breathlessness, coughing and hypoxia. Bronchospasms are a serious potential complication of placing a breathing tube during general anesthesia.

  4. Exhalation - Wikipedia

    en.wikipedia.org/wiki/Exhalation

    The main reason for exhalation is to rid the body of carbon dioxide, which is the waste product of gas exchange in humans. Air is brought into the lungs through inhalation. Diffusion in the alveoli allows for the exchange of O 2 into the pulmonary capillaries and the removal of CO 2 and other gases from the pulmonary capillaries to be exhaled.

  5. Bronchoconstriction - Wikipedia

    en.wikipedia.org/wiki/Bronchoconstriction

    Bronchoconstriction is the constriction of the airways in the lungs due to the tightening of surrounding smooth muscle, with consequent coughing, wheezing, and shortness of breath. Causes [ edit ]

  6. Respiratory sounds - Wikipedia

    en.wikipedia.org/wiki/Respiratory_sounds

    Respiratory sounds, also known as lung sounds or breath sounds, are the specific sounds generated by the movement of air through the respiratory system. [1] These may be easily audible or identified through auscultation of the respiratory system through the lung fields with a stethoscope as well as from the spectral characteristics of lung sounds. [2]

  7. Shortness of breath - Wikipedia

    en.wikipedia.org/wiki/Shortness_of_breath

    Asthma is the most common reason for presenting to the emergency room with shortness of breath. [2] It is the most common lung disease in both developing and developed countries affecting about 5% of the population. [2] Other symptoms include wheezing, tightness in the chest, and a nonproductive cough. [2]

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  9. Obstructive lung disease - Wikipedia

    en.wikipedia.org/wiki/Obstructive_lung_disease

    Diagnosis of obstructive disease requires several factors depending on the exact disease being diagnosed. However one commonality between them is an FEV1/FVC ratio less than 0.7, i.e. the inability to exhale 70% of their breath within one second. [11] Following is an overview of the main obstructive lung diseases.

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