Respiratory System - Short MCQs

1. A granuloma defined as a group of activated epithelioid macrophages surrounded by a cuff of lymphocytes can be seen in the lung in all conditions, EXCEPT:
a. Sarcoidosis
b. Berylliosis
c. Tuberculosis
d. Asbestosis


2. This cancer is associated with the worst prognosis:
a. Small cell carcinoma
b. Adenocarcinoma
c. Alveolar carcinoma
d. Squamous cell carcinoma


3. Ghon focus can be appreciated in:
a. Primary tuberculosis
b. Secondary tuberculosis
c. Miliary tuberculosis
d. Progressive tuberculosis


4. The following statement is false regarding bronchial asthma:
a. Atopic asthma is usually associated with old age and is mediated by IgG antibodies
b. Major basic protein of eosinophils causes epithelial damage leading to airway constriction
c. Histamine causes bronchospasm
d. Basement membrane is thickened


5. Caplan syndrome consists of the following:
a. Silicosis + tuberculosis
b. Pneumoconiosis + Rheumatoid arthritis
c. Byssinosis + Rheumatoid arthritis
d. Asbestosis + tuberculosis


6. Viral pneumonias are characterized by:
a. Alveolar exudates of neutrophils
b. Interstitial infiltrates
c. Bronchiolitis
d. No inflammatory cell reaction


7. The most common lung tumor seen in non-smokers:
a. Small cell carcinoma
b. Large cell carcinoma
c. Adenocarcinoma
d. Squamous cell carcinoma


8. Pulmonary surfactant is secreted by:
a. Type I pneumonocytes
b. Type II pneumonocytes
c. Clara cells
d. Bronchiolar epithelium


9. The most common pigment to be deposited in the lungs is:
a. Iron
b. Silica
c. Carbon
d. Dust


10. Predominant interstitial inflammation is characteristic of pneumonia caused by:
a. Hemophilus influenzae
b. Histoplasma capsulatum
c. Mycoplasma pneumoniae
d. Legionella pneumophila

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