What respiratory condition or disease results in both increased compliance and increased resistance?
a. Asthma
b. Atelectasis
c. Surfactant deficiency
d. Bronchopulmonary dysplasia
ANS: A
Compliance is a measure of the relative ease with which the chest wall expands. Resistance is determined primarily by airway size. Asthma results in increased compliance and increased resistance, both of which increase the work of breathing. Atelectasis and surfactant deficiency both decrease compliance but do not affect resistance. Bronchopulmonary dysplasia increases resistance but does not affect compliance.
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