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Flashcards in Carotid Exam Deck (37)
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1

What are the warning signs of a stroke?

Aphasia
Dysphasia
Dysphagia
Dysarthria
Tingling and numbness
Vertigo
Transient blindness

p33

2

If there is a difference in blood pressures from arm to arm, what area is diseased from that indication?

There is stenosis
Subclavian and/or vertebral disease
Subclavian steal

3

What type of flow does ECA have?

High resistive

p47

4

What type of flow does ICA have?

Low Resistive

p47

5

What are the spectral analysis ultrasound findings of an ICA occlusion?

No Doppler flow
ECA and CCA will have similar waveforms

p60

Lack arterial pulsations bc there is no arterial flow
Loss of diastolic flow

6

What is the difference between CVA and TIA?

CVA- is a complete brain stroke; permanent or semi-permanent
TIA- has the same symptoms but they only last for 24 hours

p33

7

Where do you place the gate/angle in the vessel?

parallel in middle of vessel

8

1. What are the measurements for the degree of stenosis in the ICA?

2. What are the two measurements that are most important to us?

1. Normal (no stenosis)
< 50% (stenosis)
50-69% (stenosis)
=or > 70% (stenosis to near occlusion)
total occlusion
pg 72 4th edt.

2. Peak systolic velocity and end diastolic velocity

9

How many strokes occur each year?

795,000. (google)

over 700,000
per beth

10

What does the innominate artery divide into?

RT CCA
RT Subclavian A
pg. 35 4th ed.

11

What should the sample volume (gate) be?

2 mm
per Beth

12

What blood vessels are symmetrical?

vertebral arteries
per Beth

13

If there is an abnormal Doppler waveform in the ICA, where would that suggest disease at?

A high resistance ICA waveform may also occur with stenosis in the distal ICA. However, condition usually coexists with extensive disease in the proximal ICA.

p65

14

What might happen to the velocities to the ipsilateral side of the contralateral ICA is occluded?

If one side is occluded, the other side ( the contralateral) will have an increased velocity
p80

15

When determining the ICA/CCA ratios, what section of the CCA is used for the ratio?

Mid/dist
per Beth

16

What characteristics would be demonstrated with a subclavian steal?

Retrograde flow in the vertebral
Per Beth

17

What would a less than 125 cm/s PSV suggest?

Normal
less than 50% stenosis
p73

18

What is transient partial or complete loss of vision called?

Amaurosis fugax

p33

19

The carotid body assists in regulating ____.

It assists in heart rate, blood pressure, and respiration

20

What is the most common visualized branch of the ECA?

Superior thyroid artery

p36

21

What is the noise created by tissue vibration?

Bruit
Per Beth

22

With color duplex imaging there may be an area where the color doesn't fill in the vessel, what might this be from?

Boundary layer separation
Per Beth

23

The vertebral arteries join to form the _____.

Basilar artery

p35

24

What is the inability to speak or express oneself?

Aphasia

p33

25

What does NASCET mean?

North American Symptomatic Carotid Endarterectomy Trial
Guidelines for symptomatic patients to undergo surgery or not based on % stenosis

p70

26

What can cause a stroke?

Emboli
Thrombosis
Hemorrhage

PPT slide 5

27

What does RIND mean?

Reversible Ischemic Neurologic Deficit
Symptoms resolve within 48 hours
p33

28

What are the vertebral-basilar symptoms?

Drop attacks
Syncope
Vertigo
Dizziness
Diplopia
Binocular blindness

p33

29

What is IPH?

Intraplaque hemorrhage
Appears anechoic compared to the echogenic surrounding plaque

p84

30

Anatomy of the carotid system (image on test)

p35