CPD Questions (Ejection Fraction in LBBB)

Name:: First Name:
Last Name:
Contact Email:
Submission date:
I confirm that I have watched the accompanying video in full before completing these CPD questions and claiming CPD points.:: Yes
1. What happens to left ventricular electrical activation in left bundle branch block?:: A. The LV activates before the RVB. The LV activates normally through the left bundleC. The RV activates first and the LV activates more slowly via trans-septal spreadD. Both ventricles activate simultaneouslyE. Activation begins in the lateral LV wall
2. Which mechanical contraction pattern is typically associated with LBBB?:: A. Delayed septal contraction and early lateral contractionB. Early septal contraction and delayed lateral contractionC. Simultaneous septal and lateral contractionD. Isolated apical akinesisE. Early contraction of all LV segments
3. Why can assessment of LV ejection fraction be challenging in patients with LBBB?:: A. LV volumes cannot be measured in LBBBB. Dyssynchronous contraction can make identification of true end-systole difficultC. LBBB prevents visualisation of the LV apexD. End-diastolic volume cannot be calculatedE. LBBB always causes severe LV dysfunction
4. In a patient with LBBB, which frame should generally be selected as end-systole for LV volume measurement?:: A. The frame immediately after mitral valve openingB. The frame with the smallest LV cavity, typically immediately before mitral valve openingC. The frame at the peak of the T waveD. The frame immediately after aortic valve openingE. The same frame number used for end-diastole
5. What is an important limitation of the Simpson biplane EF in a patient with regional wall motion abnormalities?:: A. It assesses only the right ventricleB. It cannot calculate end-systolic volumeC. It always overestimates EFD. It requires myocardial strain analysisE. It relies on the apical four- and two-chamber planes, so abnormalities outside these planes may be under-represented
6. Why may 3D echocardiography be useful for LV EF assessment in LBBB?:: A. It measures only one LV imaging planeB. It assumes the LV has an elliptical shapeC. It measures LV volume throughout the cardiac cycle and helps identify the true end-systolic volumeD. It eliminates mechanical dyssynchronyE. It measures only end-diastolic volume
7. What additional information can myocardial strain provide when assessing LV function in LBBB?:: A. It measures coronary artery stenosisB. It eliminates the effect of loading conditionsC. It directly measures LV pressureD. It can identify myocardial dysfunction that may not be fully reflected by EFE. It replaces the need for 2D imaging
8. Which strain pattern is consistent with mechanical dyssynchrony in LBBB?:: A. Simultaneous peak shortening of the septal and lateral wallsB. Delayed septal shortening with early lateral shorteningC. Early septal shortening with late lateral shorteningD. Uniform post-systolic shortening of all segmentsE. Normal strain timing with reduced LV volumes
9. What does myocardial work add to strain assessment in patients with LBBB?:: A. It combines myocardial strain with afterloadB. It measures only LV ejection fractionC. It removes the need to measure blood pressureD. It measures electrical conduction directlyE. It assesses only lateral wall function
10. Which statement BEST describes exercise stress echocardiography in patients with LBBB?:: A. Any globally reduced contractile response confirms significant CADB. LBBB has no effect on stress echo interpretationC. Globally reduced contractile reserve may have reduced specificity for CAD, while regional abnormalities in a coronary distribution remain more usefD. Stress echocardiography is always contraindicated in LBBBE. Septal abnormalities during exercise always indicate LAD disease

CPD Questions (Ejection Fraction in LBBB)

Quick Links

Committees

Resources

Meetings/Events

Contact Us

CPD Questions (Ejection Fraction in LBBB)

Quick Links

Committees

Resources

Meetings/Events

Contact Us

Follow Us