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: Take pulsus parvus first.
A narrow aortic valve limits how much blood the left ventricle can eject in one beat, so the pulse felt at the wrist feels small and weak. That is pulsus parvus, and it fits aortic stenosis.

Step 2: Look at the bisferiens shape.
Two peaks in one pulse wave happen when a stiff, narrowed valve pushes blood out forcefully and some of that same blood then leaks back due to a leaky valve too. Having both stenosis and regurgitation together produces this twin peak pulse.

Step 3: Consider alternating beats.
When the heart muscle is weak, as in severe left ventricular failure, consecutive beats can vary in strength while the rhythm stays regular. This beat to beat swing is pulsus alternans.

Step 4: Consider the paradox with breathing.
In cardiac tamponade, fluid around the heart squeezes the chambers, and normal inspiration drops the systolic pressure by more than 10 mm Hg. This exaggerated fall is pulsus paradoxus.

Step 5: Assemble the code.
So pulsus parvus goes with aortic stenosis (1), bisferiens pulse with mixed aortic stenosis and regurgitation (3), pulsus alternans with left ventricular failure (4), and pulsus paradoxus with cardiac tamponade (2). This is option (b).
\[ \boxed{A\text{-}1,\ B\text{-}3,\ C\text{-}4,\ D\text{-}2} \]