CCT CCT Cardiac Diagnostic Testing & Equipment

Question 1

During a stress echocardiogram, new wall motion abnormalities during exercise indicate:

Accepted Answer

Myocardial ischemia in the affected territory

Answer

Normal cardiac response

Answer

Pericarditis

Answer

Valvular regurgitation

Question 2

Which cardiac biomarker is the most specific and sensitive indicator of myocardial injury?

Accepted Answer

Troponin I or T

Answer

CK-MB

Answer

Myoglobin

Answer

LDH

Question 3

An echocardiogram reports an ejection fraction (EF) of 35%. This finding is consistent with:

Accepted Answer

Reduced ejection fraction heart failure (HFrEF)

Answer

Normal cardiac function

Answer

Hyperdynamic circulation

Answer

Constrictive pericarditis

Question 4

During cardiac catheterization, a pressure gradient of 50 mmHg across the aortic valve indicates:

Accepted Answer

Severe aortic stenosis

Answer

Mild aortic regurgitation

Answer

Normal valve function

Answer

Mitral valve prolapse

Question 5

The P-R interval on a 12-lead ECG represents:

Accepted Answer

Time for impulse conduction from atria through the AV node to ventricles

Answer

Duration of ventricular depolarization

Answer

Ventricular repolarization time

Answer

Duration of atrial repolarization only

Question 6

A Holter monitor is best used to detect:

Accepted Answer

Intermittent arrhythmias not captured on a routine 12-lead ECG

Answer

Coronary artery blockage

Answer

Valvular anatomy

Answer

Ejection fraction