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Reactive airway disease (RAD) is an informal label that physicians apply to patients with symptoms similar to those of asthma. [1] An exact definition of the condition does not exist. [ 1 ] [ 2 ] Individuals who are typically labeled as having RAD generally have a history of wheezing, coughing, dyspnea , and production of sputum that may or may ...
When the airways spasm or constrict in response to the irritating stimulus of the breathing tube, it is difficult to maintain the airway and the patient can become apneic. During general anesthesia, signs of bronchospasm include wheezing, high peak inspiratory pressures, increased intrinsic PEEP , decreased expiratory tidal volumes, and an ...
High-altitude pulmonary edema (HAPE) is a life-threatening form of non-cardiogenic pulmonary edema that occurs in otherwise healthy people at altitudes typically above 2,500 meters (8,200 ft). [2]
Bronchial hyperresponsiveness is a hallmark of asthma but also occurs frequently in people with chronic obstructive pulmonary disease (COPD). [2] In the Lung Health Study, bronchial hyperresponsiveness was present in approximately two-thirds of patients with non-severe COPD, and this predicted lung function decline independently of other ...
Airway muscular vasculature controls the flow of nutrients to the airways, the temperature of the airways, as well as the clearance of insoluble particles in the airways, which may play an important role in the activity of inhaled bronchodilators, thus affecting airway reactivity and airway tone changes in obstructive lung diseases. [9]
Bronchiectasis is a disease in which there is permanent enlargement of parts of the airways of the lung. [5] Symptoms typically include a chronic cough with mucus production. [ 3 ] Other symptoms include shortness of breath , coughing up blood , and chest pain. [ 2 ]
The upper airway is defined as all the structures connecting the glottis to the mouth and nose. [9] The most common upper respiratory tract infection is the common cold . However, infections of specific organs of the upper respiratory tract such as sinusitis , tonsillitis , otitis media , pharyngitis and laryngitis are also considered upper ...
Presence of airway responsiveness, i.e. significant drop in FEV-1, can be seen in patients with occupational asthma. [1] Specific inhalation challenges test consist of exposing the subjects to the suspected occupational agent in the laboratory and/or at the workplace and assessing for asthma symptoms as well as a reduction in FEV 1. [3] [17]