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Emphysema results from destruction of alveolar walls and capillaries, which is bc of
a. release of proteolytic enzymes from immune cells
b. air trapping with resultant excessive alveolar pressure
c. excessive a1-antitrypsin
d. autoantibodies against pulmonary basement membrane - ✔✔A
Chronic bronchitis often leads to for pulmonate bc of
a. ventricular hypoxia
b. increased pulmonary vascular resistance
c. left ventricular strain
d. hypervolemia - ✔✔B
All obstructive pulmonary disorders are characterized by
a. resistance to airflow
b. hyper-responsiveness
c. decreased residual volumes
d. decreased lung compliance - ✔✔A
Asthma is categorized as an
a. restrictive pulmonary ds
b. infective pulmonary ds
c. obstructive pulmonary ds
d. type pf acute tracheo-bronchial obstruction - ✔✔C
, Which pulmonary function test result is consistent with a diagnosis of asthma?
a. reduced forced expiratory volume in 1 second (FEV1)
b. decreased functional residual capacity
c. increased FEV1
d. reduced total lung volume - ✔✔A
Obstructive disorders are associated with
a. low residual volumes
b. low expiratory flow rates
c. increased expiratory reserve volume
d. decreased total lung capacity - ✔✔B
COPD leads to a barrel chest, bc it causes
a. pulmonary edema
b. muscle atrophy
c. prolonged inspiration
d. air trapping - ✔✔D
Lack of a-antitrypsin in emphysema causes
a. chronic mucous secretion and airway fibrosis
b. destruction of alveolar tissue
c. pulmonary edema dn increased alveolar compliance
d. bronchoconstriction and airway edema - ✔✔B
The hyper-secretion of mucus resulting for chronic bronchitis is the result of
a. recurrent infection
b. destruction of alveolar septa