CSC Cardiac Surgery Sample 2

Question 1

Which cannulation site is preferred for arterial inflow in patients with severe ascending aortic atherosclerosis?

Accepted Answer

Axillary artery

Answer

Ascending aorta

Answer

Femoral artery

Answer

Innominate artery

Question 2

During mitral valve repair, the P2 scallop of the posterior leaflet is resected and reapproximated. What additional step is routinely performed to prevent systolic anterior motion (SAM)?

Accepted Answer

Ring annuloplasty

Answer

Chordal transfer

Answer

Anterior leaflet augmentation

Answer

Commissurotomy

Question 3

A patient on cardiopulmonary bypass develops a sudden increase in arterial line pressure with decreased venous return. What is the most likely cause?

Accepted Answer

Venous air lock

Answer

Aortic dissection

Answer

Pump failure

Answer

Oxygenator failure

Question 4

Which conduit has the best long-term patency for coronary artery bypass grafting to the left anterior descending artery?

Accepted Answer

Left internal mammary artery

Answer

Saphenous vein graft

Answer

Radial artery

Answer

Right gastroepiploic artery

Question 5

In aortic valve replacement, what is the primary advantage of a sutureless bioprosthetic valve?

Accepted Answer

Reduced cross-clamp time

Answer

Lower cost

Answer

Better hemodynamics at large sizes

Answer

Longer durability

Question 6

What is the most common cause of late failure of saphenous vein coronary bypass grafts beyond 5 years?

Accepted Answer

Atherosclerosis

Answer

Anastomotic stenosis

Answer

Graft thrombosis

Answer

Intimal hyperplasia

Question 7

Which electrolyte abnormality is most commonly associated with cardiac arrhythmias following cardiopulmonary bypass?

Accepted Answer

Hypomagnesemia

Answer

Hyponatremia

Answer

Hyperkalemia

Answer

Hypocalcemia