Vascular Testing and Imaging Flashcards Preview

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Flashcards in Vascular Testing and Imaging Deck (10)
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1
Q

What does the Ankle Brachial Index (ABI) measure?

A

peripheral tissue perfusion to rule out arterial disease

Ratio of systolic BP of the LE to SBP of the the UE

2
Q

What does Continuous Wave Doppler do?

A

determines velocity of bloodflow direction (to determine severity of PVD)

3
Q

What does Transcutaneous Oxygen Measure determine?

A

provides a measure of tissue hypoxia by looking at O2 tension of skin (mmHg)
Provides a predictor of wound healing success or failure

4
Q

What does Arterial and Venous Duplex Scanning do?

A

Provide an accurate localization and quantification of lesions (differentiates stenosis from occlusions)

5
Q

What does Laser Doppler measure?

A

skin/microvascular perfusion during and after bypass

6
Q

What does Magnetic Resonance Angiography (MRA) measure?

A

LE ischemia in pts with a contraindication to standard contrast angiography

7
Q

What does Computed Tompgraphy Angiography measure?

A

uses x-rays to visualize blood flow in arterial and venous vessels (used to detect clots in veins or narrowing of arteries)

8
Q

What does a positive claudication test indicate?

How is it performed?

A

arterial involvement

ambulate on treadmill and note time or distance at which pain occurs

9
Q

What does a positive capillary refill test indicate? What is normal?

A

surface arterial bloodflow

3 sec or less

10
Q

What does a positive Homans sign test indicate?

A

DVT