CCI RCIS 5

Question 1

Ventricular tachycardia during left heart catheterization is MOST commonly triggered by:

Accepted Answer

Catheter contact with the ventricular endocardium

Answer

Mechanical irritation of the ventricular myocardium from catheter tip contact is the most frequent cause of catheter-induced VT during left heart cath.

Question 2

In the sheath-to-catheter size conversion, a 6 French sheath accommodates catheters up to which size?

Accepted Answer

6 French

Answer

A 6 French sheath is sized to accommodate a 6 French catheter; the sheath inner lumen matches the outer diameter of the compatible catheter.

Question 3

The 'TIMI flow grade' system classifies coronary blood flow from 0 to 3. TIMI 2 is defined as:

Accepted Answer

Partial perfusion — contrast passes but fills and clears the distal vessel slowly

Answer

TIMI 2 indicates partial reperfusion: contrast does opacify the distal vessel but clearing is slower than in an unobstructed artery.

Question 4

A patient with mitral regurgitation will show a prominent 'V wave' on the pulmonary artery wedge pressure tracing. This V wave represents:

Accepted Answer

Passive left atrial filling against a closed mitral valve during ventricular systole

Answer

V waves occur during ventricular systole when regurgitant flow from the LV rapidly fills the LA, generating a high-pressure wave visible on the wedge tracing.

Question 5

Which of the following is the PRIMARY indication for intra-aortic balloon pump (IABP) counterpulsation?

Accepted Answer

Cardiogenic shock or hemodynamic instability refractory to medical therapy

Answer

IABP is indicated for cardiogenic shock, acute MI with hemodynamic compromise, or high-risk PCI support to augment diastolic coronary perfusion and reduce afterload.

CCI - Cardiovascular Credentialing International Practice Test

CCI - Cardiovascular Credentialing International Practice Test

CCI RCIS 5