LV Systolic Function

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1. Which coronary artery supplies the territory marked "1" in the diagram below?

1 point

Left anterior descending (LAD)

Right coronary artery

Circumflex

Circumflex and LAD

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2. An 'akinetic' wall segment is characterized by systolic thickening of less than _________

1 point

30%

25%

20%

15%

10%

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3. Which of the following is NOT an ejection phase index of systolic function?

1 point

Fractional shortening

Fractional area change

Ejection fraction

dP/dt

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4. Which of the following assess systolic function in 2 dimensions?

1 point

Fractional shortening

Fractional area change

Ejection fraction

dP/dt

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5. What is the lower limit of normal for fractional shortening?

1 point

Option 5

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6. Which is FALSE regarding the velocity of circumferential shortening?

1 point

VCF = Fractional shortening * 1 / ejection time (s)

The lower limit of normal is 1.1

The unit of measurement is circumferences per second

Ejection fraction must be know in order to perform the calculation

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7. Which is FALSE regarding assessments of ventricular function using Simpson's biplane?

1 point

Volumetric assessments are dependant on clear endocardial border definition

Foreshortening will overestimate the ejection fraction

Volumetric assessments do not reflect cardiac output in the presence of significant MR

Volumetric assessments are ejection phase indices of ventricular function

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8. Which is TRUE regarding dP/dt?

1 point

dP/dt requires a TR jet

The lower limit of normal is 1200

dP/dt is measured using PWD through the mitral valve

dP/dt is the maximum rate of rise of LV pressure during diastole

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9. Which of the following IS NOT a load independent measure of ventricular function?

1 point

end systolic elastance

strain rate

dP/dt

preload adjusted max power

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10. Which of the following is the best and most load independent index of LV contractility?

1 point

End systolic elastance

Preload recruitable stroke work

Preload adjusted max power

Strain rate

Other:

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