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Expiratory reserve volume: the maximal volume of air that can be exhaled from the end-expiratory position: IRV: Inspiratory reserve volume: the maximal volume that can be inhaled from the end-inspiratory level: IC: Inspiratory capacity: the sum of IRV and TV: IVC: Inspiratory vital capacity: the maximum volume of air inhaled from the point of ...
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]
Asthma is clinically classified according to the frequency of symptoms, forced expiratory volume in one second (FEV 1), and peak expiratory flow rate. [11] Asthma may also be classified as atopic (extrinsic) or non-atopic (intrinsic), based on whether symptoms are precipitated by allergens (atopic) or not (non-atopic). [ 12 ]
Residual volume: the volume of air remaining in the lungs after a maximal exhalation: ERV: Expiratory reserve volume: the maximal volume of air that can be exhaled from the end-expiratory position: IRV: Inspiratory reserve volume: the maximal volume that can be inhaled from the end-inspiratory level: IC: Inspiratory capacity: the sum of IRV and ...
Inspiratory vital capacity: the maximum volume of air inhaled from the point of maximum expiration: VC: Vital capacity: the volume of air breathed out after the deepest inhalation. V T: Tidal volume: that volume of air moved into or out of the lungs during quiet breathing (VT indicates a subdivision of the lung; when tidal volume is precisely ...
Expiratory reserve volume: the maximal volume of air that can be exhaled from the end-expiratory position: IRV: Inspiratory reserve volume: the maximal volume that can be inhaled from the end-inspiratory level: IC: Inspiratory capacity: the sum of IRV and TV: IVC: Inspiratory vital capacity: the maximum volume of air inhaled from the point of ...
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.
Wheezes, describing a continuous musical sound on expiration or inspiration. A wheeze is the result of narrowed airways. Common causes include asthma and emphysema. [20] Rhonchi (an increasingly obsolete term) characterised by low pitched, musical bubbly sounds heard on inspiration and expiration. Rhonchi are the result of viscous fluid in the ...
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