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Obstructive Respiratory Diseases- Asthma

Bronchiolar narrowing (constriction) that comes and goes, depending on several different things. Asthma
In asthma, you get chronic _______________________. Inflammation of mucosa in the linings of the airway.
when you have too much mucosa, what is usually present? Inflammatory cells (white blood cells, mast cells, etc...) - causes pus to fill airways.
What is usually the main complaint for folks with asthma? hard to move air into and out of lungs (especially out)
How is asthma diagnosed? Measure the amount of air someone can blow out per time - the forced expiratory volume or effort (FEV).
Asthmatics breath more ___________ than others. (rapid or slow?) rapidly.
"Deep breathing" for an asthmatic produces over time a ___________. hyperinflated chest.
What is usually present with asthma? Coughing and dyspnea.
Asthma is not _______ or ______. explain. Asthma is not bronchitis (involves bronchiolar secretions), and is not emphysema (which amount and springiness of tissues is lost).
Three types of asthma: 1) Extrinsic (allergic). 2) Intrinsic (idiopathic). 3) mixed.
Extrinsic asthma: Rare. Usually caused by a known allergen. Begins in childhood and results from sensitization.
Intrinsic asthma: occurs in response to UNKNOWN stimuli - can be irritated by cold, exercise, emotions/anxiety. This usually develops after age 40 and progresses to bronchitis or emphysema.
Mixed asthma: Most common, where elements of both extrinsic and intrinsic are present.
Why is exhalation difficult for asthmatics? Air passageways are overly constricted and filled with mucous and fluid.
2 possible causes (sorta causes) for asthma? Hypersensitivity to things. Beta-adrenergic innervation of bronchioles is impaired.
3 longterm treatment strategies of asthma: 1) identify and remove irritants in environment. 2) Beta-adrenergic agonists. 3) Drugs that lessen effects of inflammatory cells within the airways. (prevent mast cells from releasing mucosa)
asthma drugs mimic ______________. Epinephrine. (Albuterol - inhaled and reaches site quickly). They hit the airways, but not the heart. Epinephrine hits the heart too.
Examples of some treatments for asthma: Albuterol, steroids, blockers of acetylcholine receptors, leukotriene (inflammatory things).
Asthma drugs target ______________ and ___________. smooth muscle. Mucosa.
What is always used for asthma treatment? Beta-adrenergic agonists. Always used.
Created by: sam_melillo