Week 5 - Doppler Controls Flashcards Preview

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Flashcards in Week 5 - Doppler Controls Deck (12)
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1
Q

An on-axis vessel will be what?

A

open on both ends

2
Q

You should steer the doppler beam in the _______ direction as the vessel

A

same

3
Q

What should you do if the vessel is more vertical than horizontal?

A

steer the beam vertically

4
Q

What are two characteristics for good volume size?

A

small size and center stream

5
Q

What should you do to eliminate speckles outside the waveform?

A

Overgain, then turn down

6
Q

How big should your waveform be>

A

fill at least half the scale

7
Q

the baseline should be _______ for arteries and ______ for veins

A

low, high

8
Q

Why should you leave room below the baseline when sampling arteries?

A

to observe reversed flow

9
Q

What is the doppler angle?

A

the angle between the doppler beam and the flow direction

10
Q

How should the doppler angle cursor be oriented?

A

parallel to the walls of the vessel

11
Q

What does PSV stand for?

A

peak systolic velocity

12
Q

What does EDV stand for?

A

End diastolic velocity