test

1. Color flow imaging produces ___________ velocity estimates.

a.) peak

b.) measurable

c.) relative mean

d.) relative maximum

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2. Black on a color flow image indicates

a.) flow velocity of zero

b.) lack of flow in the area

c.) high velocity flow

d.) aliasing flow

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3. This image demonstrates _____________ in the ___________ valve.

a.) insufficiency, pulmonic

b.) insufficiency, aortic

c.) regurgitation, mitral

d.) regurgitation, tricuspid

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4. Aortic stenosis occurs during _________ and is visible from an _________ echocardiographic view.

a.) systole, apical

b.) systole, parasternal short-axis

c.) diastole, parasternal long-axis

d.) diastole, subcostal

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5. What is the color bar location for the lowest velocity?

a.) there is no way to tell

b.) closest to the baseline

c.) farthest from the baseline

d.) at the Nyquist limit

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6. Identify the colors that indicate turbulent flow with a high variance.

a.) A

b.) B

c.) C

d.) D

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7. Identify the abnormality on the image.

a.) MR

b.) TR

c.) AI

d.) MS

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8. _________ is the number of consecutive times the blood flow data has been sampled.

a.) Frame rate

b.) Line density

c.) Gate size

d.) Packet size

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9. Normal ventricular inflow occurs in _________ with blood moving from the __________ to the _________.

a.) systole, atrium, ventricle

b.) diastole, ventricle, atrium

c.) diastole, atrium, ventricle

d.) systole, ventricle, atrium

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10. The PDA produces a _______________.

a.) left to right shunt

b.) right to left shunt

c.) jet throughout the cardiac cycle

d.) turbulent flow seen in the apical view

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11. The mean velocity at a site is

a.) velocity.

b.) variance.

c.) turbulence.

d.) alias.

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12. How does aliasing display on the color image?

a.) color reversal

b.) absence of flow

c.) hanges in packet size

d.) color jet

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13. Determine the maximum measurable mean velocity for the VSD image.

a.) 6.4 cm/s

b.) 170 cm/s

c.) 0.8 cm/s

d.) 64.1 cm/s

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14. Identify the views that demonstrate CFI through the aortic valve.

a.) short axis, apical

b.) parasternal, apical

c.) parasternal, subcostal

d.) apical, suprasternal

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15. This short axis view demonstrates

a.) PI

b.) AS

c.) ASD

d.) VSD

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16. The changes in color in these coronary arteries indicate ________ flow.

a.) low velocity

b.) turbulent

c.) laminar

d.) aliasing

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17. Ghosting is the _____________ of moving anatomic structures.

a.) coloring

b.) filtering

c.) sensitivity

d.) velocity

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18. The normal RVOT flow occurs in _________ filling the __________.

a.) diastole, pulmonary artery

b.) systole, pulmonary vein

c.) diastole, pulmonary vein

d.) systole, pulmonary artery

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19. Color superimposed on an M-mode gives detail on__________ of jets.

a.) cycle

b.) age

c.) duration

d.) dimensions

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20. The _________ setting of an image determines the _________.

a.) color gain, ghosting

b.) wall filter, PRF

c.) transducer frequency, flash

d.) depth, PRF

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21. This parasternal short axis image obtained during diastole raises suspicion for

a.) MR

b.) PI

c.) AI

d.) PS

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22. To decrease the numbers of scan lines in the color sector you would

a.) decrease the line density.

b.) increase the line density.

c.) decrease the frame rate.

d.) increase the packet size.

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23. A stenosis jet visualizes during

a.) systole.

b.) a stress test.

c.) diastole.

d.) aliasing.

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24. Turbulent color flow displays as a ___________ flow.

a.) jetted

b.) mosaic

c.) laminar

d.) reversed

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