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Medicine

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Respiratory

Question
3 out of 13
 

All of the following are true about Asthma, Except: (LQ)



A Allergic Asthma is more common in young patients

B Idiosyncratic Asthma is more common older patients

C IgE is increased in Extrinsic Asthma

D IgE is increased in Idiosyncratic Asthma

Ans. D

IgE is increased in Idiosyncratic Asthma

Difference between (= Extrinsic Asthma / Allergic asthma/ Atopic Asthma/Intermittent Asthma) & Intrinsic Asthma (= Idiosyncratic Asthma)

Extrinsic asthma

Intrinsic asthma

1). H/o atopy

Present

Absent

2). Attack related to environment exposure

Yes

No

3). IgE level

Increased

Normal

4). Age of onset

Young, Early

Adult, late

5). Severity

Less severe, Intermittent

More severe, Persistent

6). Response to bronchodilator

Better

Poor

8). % of total patient

80-90%

10%

9). Sensitivity to aspirin

No

Yes

10). Associated feature

Nil

Nasal polyp

Important points

1). Reversible Airflow obstruction is a characteristic feature

2). Asthma involves both large and small airways

3). Intermittent asthma responds better to bronchodilator therapy than persistent asthma

4). Asthma is best diagnosed by demonstration of reversible obstruction.

Basic Physiology (Ref. Hari-18th ed., Pg- 2109)

Criteria of reversibility: Increase FEV1 of > 12% or > 200 ml after 15 minutes of inhaled Beta-2 agonist or 2 to 4 weeks of prednisolone therapy.

Respiratory Flashcard List

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