Chapter 22: Obstructive pulmonary disorders Flashcards
true or false: obstructive lung diseases are manifested by increased resistance to airflow
true
what is asthma characterized by?
airway obstruction that is reversible
airway inflammation
increased airway responsiveness to a variety of stimuli
what are the two types of asthma ?
intrinsic (non-allergic)
extrinsic (allergic)
which immunoglobulin mediates extrinsic asthma most commonly?
IgE
what are some inflammatory mediators?
histamine
leukotrienes
cytokines
what is the pathogenesis of asthma?
normal respiratory epithelium replaced goblet cells that result in mucosal edema, inflammatory exudates, and hyperresponsiveness of the airway
what is acute bronchitis?
acute inflammation of the trachea and bronchi
what is the distinct hallmark of acute bronchitis ?
recent onset cough
true or false: inhaled short-acting B2 agonist are given to cause bronchodilation for patients with chronic bronchitis
true
what is the etiology of emphysema?
destructive changes of the alveolar walls without fibrosis
abnormal enlargement of the distal air sacs
reversible damage
true or false: radial traction is normally used to hold the airway open
true
bronchiectasis is define as?
obstruction of bronchi due to inflammation, infection, and dilation of the bronchial wall of medium sized bronchi and bronchioles
bronchiolitis is defined as?
widespread inflammation of bronchioles as a result of infectious agents
the etiology of croup syndrome is from?
a number of acute, viral inflammatory diseases of the larynx, trachea, and bronchi