MCQ OF THE DAY KONCPT NEET PG RESPIRATORY SYSTEM

MCQ OF THE DAY KONCPT NEET PG RESPIRATORY SYSTEM

1. Longest acting beta agonist is:

(a) Salbutamol

(b) Terbutaline

(c) Salmeterol

(d) Indacaterol

Ans D

VLABA – Indacaterol, Vilanterol, Oladaterol

Ref KDT 8th edition Pg no 242

2. Directly acting cough suppressant is:

(a) Dextromethorphan

(b) Bromhexine

(c) Acetylcysteine

(d) Guaiphenesin

Ans A

Directly acting Antitussives – Codeine, Dextromethorphan

Ref KDT 8th edition Pg no 239

3. Inhaled sodium cromoglycate:

(a) Prevents the antigen antibody combination

(b) May cause cardiac arrhythmias

(c) Prevents exercise induced bronchialspasm

(d) Effective in alleviating an acute episode of allergic asthma

Ans C

Sodium cromoglycate a mast cell stabilizer – used to prevent exercise induced asthma

Ref KDT 8th edition Pg no 249

4. In bronchial asthma the mechanism of action ofcorticosteroids is:

(a) Relax airway smooth muscle directly

(b) Inhibits mast cell deregulation

(c) Inhibits adenosine receptors

(d) Inhibits lymphocytic eosinophilic mucosal inflammation

Ans D

Corticosteroids act by inhibiting bronchial inflammation

Ref KDT 8th edition Pg no 249,250

5. Mechanism of action of montelukast is:

(a) Competitive antagonist of leukotriene receptors

(b) Inhibits alpha receptor

(c) Beta receptor agonist

(d) Non-competitive inhibitor of leukotriene synthesis

Ans A

Montelukast – Competitive antagonist of leukotriene receptor

Ref KDT 8th edition Pg no 249,250

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