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Behavioral system model, nursing theorist Dorothy E. Johnson (August 21, 1919 – February 4, 1999) [ 1 ] was an American nurse, researcher, author, and theorist. She is known for creating the behavioral system model and for being one of the founders of modern system-based nursing theory .
The mechanisms behind allergic asthma—i.e., asthma resulting from an immune response to inhaled allergens—are the best understood of the causal factors. In both people with asthma and people who are free of the disease, inhaled allergens that find their way to the inner airways are ingested by a type of cell known as antigen-presenting ...
Later research found that the combination was no more effective for asthma than theophylline alone but produced more side effects. [ 9 ] [ 1 ] [ 12 ] [ 7 ] Combinations of theophylline, ephedrine, and phenobarbital (brand name Tedral among others) have also been widely used to treat asthma.
Asthma phenotyping and endotyping has emerged as a novel approach to asthma classification inspired by precision medicine which separates the clinical presentations of asthma, or asthma phenotypes, from their underlying causes, or asthma endotypes. The best-supported endotypic distinction is the type 2-high/type 2-low distinction.
MDI canister and actuator components from H&T Presspart. A metered-dose inhaler consists of three major components: the canister, which is produced in aluminum or stainless steel by means of deep drawing, where the formulation resides; the metering valve, which allows a metered quantity of the formulation to be dispensed with each actuation; and an actuator (or mouthpiece) which enables the ...
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Max Samter (March 8, 1909 – February 9, 1999) was a German-American immunologist who first extensively studied the triad between asthma, aspirin allergy, and nasal polyps that became known as Samter's triad, now aspirin-exacerbated respiratory disease. [1]
The American Academy of Allergy, Asthma, and Immunology (AAAAI) dates back to the 1920s through the founding of two professional organizations: The Society for the Study of Asthma and Allied Conditions and the American Association for the Study of Allergy. [5] In 1943, the two organizations united to create the American Academy of Allergy (AAA).