Question

Match List I (Type of pulse) with List II (Cardiac pathology) and select the correct answer using the codes given below the lists.

List I (Type of pulse)	List II (Cardiac pathology)
A. Pulsus parvus	1. Aortic stenosis
B. Bisferiens pulse	2. Cardiac tamponade
C. Pulsus alternans	3. Aortic stenosis and regurgitation
D. Pulsus paradoxus	4. Left ventricular failure

Codes:

• A. A - 1, B - 4, C - 3, D - 2
• B. A - 1, B - 3, C - 4, D - 2
• C. A - 2, B - 4, C - 3, D - 1
• D. A - 2, B - 3, C - 4, D - 1

Hint:

Link each pulse shape to the event that shapes it: narrowing, mixed lesion, weak muscle, or tamponade.

Answer 1

The Correct Option is B

Step 1: Recall pulsus parvus.
Pulsus parvus means a small volume, low amplitude pulse. It is produced when the left ventricle has to push blood through a narrowed aortic valve, so less blood reaches the periphery with each beat. This is the classic pulse of aortic stenosis, so A matches 1.

Step 2: Recall the bisferiens pulse.
A bisferiens pulse has two systolic peaks felt in a single beat. It is seen when a stenotic aortic valve forces blood out under high pressure and some of that blood then regurgitates back, giving a mixed lesion picture. This double impulse is classic for combined aortic stenosis and regurgitation, so B matches 3.

Step 3: Recall pulsus alternans.
Pulsus alternans is a regular rhythm with alternating strong and weak beats, felt best while the blood pressure cuff is slowly deflated. It reflects a failing left ventricle that cannot generate the same force with each contraction, so it is a sign of severe left ventricular failure, and C matches 4.

Step 4: Recall pulsus paradoxus.
Pulsus paradoxus is an exaggerated fall in systolic pressure, more than 10 mm Hg, during normal inspiration. It happens when a tense pericardial effusion restricts filling of the heart chambers, a hallmark of cardiac tamponade, so D matches 2.

Step 5: Match to the codes.
This gives A-1, B-3, C-4, D-2, which is code (b).

Step 6: Final answer.
\[ \boxed{A\text{-}1,\ B\text{-}3,\ C\text{-}4,\ D\text{-}2} \]