Cardiology Quiz

What is a consequence of atrioventricular (AV) dyssynchrony?

• Increased left ventricular ejection fraction

• Delay between atrial and ventricular contractions

• Normal mitral regurgitation

• Coordinated left ventricular contraction

Interventricular dyssynchrony is associated with which condition?

• Right bundle branch block (RBBB)

• Left bundle branch block (LBBB)

• Atrial fibrillation (AF)

• Ventricular tachycardia (VT)

What is typically observed in intraventricular dyssynchrony?

• Increased systolic function

• Normal sequence of activation and contraction of the left ventricular wall

• Decreased systolic function

• Coordinated contraction of the left ventricular wall

What does CRT stand for in the context of the provided material?

• Cardiac Resynchronization Therapy

• Coronary Resonance Technology

• Cardiac Rhythm Treatment

• Coronary Restoration Technique

Where are the leads of a CRT device placed?

• RA, RV, and LV

• RA, LA, and LV

• RA, RV, and LA

• RV, LV, and coronary sinus

For which patients is CRT pacing (CRT-P) recommended?

• Patients with heart failure and no significant symptoms

• Patients with heart failure and significant symptoms including a wide QRS and a high LV ejection fraction

• Patients with heart failure and significant symptoms including a narrow QRS and a low LV ejection fraction

• Patients with heart failure and significant symptoms including a wide QRS and a low LV ejection fraction

What is the purpose of CRT pacing (CRT-P) devices?

• To decrease cardiac function

• To monitor heart rate

• To improve cardiac function by resynchronizing atrial, RV and LV function

• To replace the natural pacemaker of the heart

What can be evaluated using M-mode or spectral Doppler approaches according to the image?

• The function of the pacemaker

• The blood pressure levels

• Dyssynchrony in the timing of RV and LV contraction

• The electrical activity of the heart

What is the result of changing the atrioventricular time interval from 100 ms to 180 ms?

• Decreases LV filling

• Improves LV filling

• Has no effect on LV filling

• Worsens heart rhythm

What is shown in the parasternal short-axis views in the image?

• LV at end-systole

• RV at end-diastole

• LV at end-diastole

• RV at end-systole