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Airway clearance therapy is treatment that uses a number of airway clearance techniques to clear the respiratory airways of mucus and other secretions. [1] Several respiratory diseases cause the normal mucociliary clearance mechanism to become impaired resulting in a build-up of mucus which obstructs breathing, and also affects the cough reflex.
Post-nasal drip (PND), also known as upper airway cough syndrome (UACS), occurs when excessive mucus is produced by the nasal mucosa. The excess mucus accumulates in the back of the nose , and eventually in the throat once it drips down the back of the throat.
A cough is a sudden expulsion of air through the large breathing passages which can help clear them of fluids, irritants, foreign particles and microbes.As a protective reflex, coughing can be repetitive with the cough reflex following three phases: an inhalation, a forced exhalation against a closed glottis, and a violent release of air from the lungs following opening of the glottis, usually ...
The Valsalva maneuver is performed by a forceful attempt of exhalation against a closed airway, usually done by closing one's mouth and pinching one's nose shut while expelling air, as if blowing up a balloon.
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 or exacerbations) due to abnormalities of the airways (bronchitis ...
It also includes drugs which are marketed as cough suppressants or antitussives, but their effectiveness in reducing cough symptoms is unclear or minimal. [ 1 ] [ 2 ] [ 3 ] While they have been used by 10% of American children in any given week, they are not recommended in Canada or the United States in children six years or younger because of ...
A postinfectious cough is a lingering cough that follows a respiratory tract infection, such as a common cold or flu and lasting up to eight weeks. Postinfectious cough is a clinically recognized condition represented within the medical literature.
Misuse of multisymptom cold medications, rather than use of a cough suppressant whose sole active ingredient is dextromethorphan, carries significant risk of fatality or serious illness. Multisymptom cold medicines contain other active ingredients, such as paracetamol (acetaminophen), which can cause permanent bodily damage such as kidney ...