CCS Diagnostic Testing & Imaging 2

Question 1

Which echocardiographic finding is most characteristic of cardiac tamponade?

Accepted Answer

Right ventricular diastolic collapse

Answer

Right ventricular diastolic collapse occurs when pericardial pressure exceeds right ventricular diastolic pressure, a hallmark of cardiac tamponade.

Question 2

On a 12-lead ECG, ST-segment elevation in leads V1-V4 with reciprocal changes in inferior leads most likely indicates:

Accepted Answer

Anterior STEMI

Answer

ST elevation in V1-V4 corresponds to the anterior wall territory supplied by the left anterior descending artery.

Question 3

A patient undergoes exercise stress testing and achieves 85% of maximum predicted heart rate. The test is terminated due to 2mm horizontal ST depression. How is this result classified?

Accepted Answer

Positive for ischemia

Answer

Horizontal or downsloping ST depression ≥1mm during exercise is a positive finding for myocardial ischemia.

Question 4

Which nuclear imaging agent is most commonly used for myocardial perfusion imaging?

Accepted Answer

Technetium-99m sestamibi

Answer

Technetium-99m sestamibi (Cardiolite) is the most widely used tracer for myocardial perfusion SPECT imaging due to its favorable imaging characteristics.

Question 5

What is the primary advantage of cardiac MRI over echocardiography for evaluating myocardial viability?

Accepted Answer

Late gadolinium enhancement detects scar tissue with high spatial resolution

Answer

Late gadolinium enhancement MRI identifies irreversible myocardial injury with superior spatial resolution, distinguishing viable from non-viable myocardium.

(CCS) Certified Cardiovascular Specialist Practice Test

(CCS) Certified Cardiovascular Specialist Practice Test

CCS Diagnostic Testing & Imaging 2