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Medicine

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Respiratory

Question
2 out of 13
 

All of the following are true about Asthma, Except: (PGI May 2011)



A Charcot Leyden crystals may be seen in sputum

B Reversible Airflow obstruction is a characteristic feature

C Large airways are involved

D Small airways are not involved

E Intermittent Asthma responds better to bronchodilator therapy than persistent Asthma

Ans. D

Small airways are not involved

Definition

It is characterized by recurrent episodes of dyspnea Q, dry coughQ, and wheeze Q caused by reversible airwaysQ obstruction.

(Reversible airway obstruction is the most important criteria & is the most characteristic feature)

Three factors contribute to airway narrowing: (In both large & small airways)

1). Bronchial muscle contraction Q: Triggered by a variety of stimuli;

2). Mucosal swelling Q

3). Mucosal inflammation Q, caused by mast cell and basophil degranulation resulting in the release of inflammatory mediators; increased mucus production.

Respiratory Flashcard List

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