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What is True in Asthma: and explain in detail?
Ans. B- Increased FRC Increased Residual VolDiseases that REDUCE compliancea. Fibrosisb. Pulmonary hypertension/congestionc. Alveolar atelectasisd. Reduced surfactant (increased surface tension) e.g. artificial ventilation, prematurityDiseases that INCREASE compliance:a. Pulmonary emphysema (alteration in elastic tissue) > static compliance is Increased but dynamic compliance is reduced.b. Normal ageing (alteration in elastic tissue)c. Asthma (reason unknown).