Question 1

The main function of the respiratory system is:*

A. Pumping blood

B. Gas exchange (O₂ and CO₂)

C. Food digestion

D. Hormone production

Question 2

Dullness on percussion may suggest:*

A. Emphysema

B. Pleural effusion or consolidation

C. Pneumothorax

D. Normal finding

Question 3

Resonant percussion sounds indicate:*

A. Normal lung tissue

B. Bone

C. Fluid-filled area

D. Solid organ

Question 4

Increased tactile fremitus suggests:*

A. Fluid accumulation

B. Lung consolidation (e.g. pneumonia)

C. Air trapping

D. Bronchospasm

Question 5

Decreased tactile fremitus is associated with:*

A. Pneumothorax

B. Pneumonia

C. Consolidation

D. Asthma

Question 6

Pulse oximetry is unreliable when:*

A. Patient is still

B. O₂ saturation >95%

C. Peripheral vasoconstriction or nail polish present

D. Patient is awake

Question 7

Cyanosis around the lips suggests:*

A. Normal oxygenation

B. Hypoxemia

C. Dehydration

D. Fever

Question 8

Clubbing of fingers indicates:*

A. Acute hypoxemia

B. Chronic hypoxemia

C. Dehydration

D. Heartburn

Question 9

What is the normal anteroposterior (AP) to lateral chest diameter ratio?*

A. 1:1

B. 1:2

C. 2:1

D. 1:3

Question 10

Which technique assesses underlying chest structure?*

A. Inspection

B. Palpation

C. Percussion

D. Auscultation

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