Vascular Testing and Imaging Flashcards Preview

Orthotics and Prosthetics > Vascular Testing and Imaging > Flashcards

Flashcards in Vascular Testing and Imaging Deck (10)
Loading flashcards...
1

What does the Ankle Brachial Index (ABI) measure?

peripheral tissue perfusion to rule out arterial disease
Ratio of systolic BP of the LE to SBP of the the UE

2

What does Continuous Wave Doppler do?

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

3

What does Transcutaneous Oxygen Measure determine?

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

4

What does Arterial and Venous Duplex Scanning do?

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

5

What does Laser Doppler measure?

skin/microvascular perfusion during and after bypass

6

What does Magnetic Resonance Angiography (MRA) measure?

LE ischemia in pts with a contraindication to standard contrast angiography

7

What does Computed Tompgraphy Angiography measure?

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

8

What does a positive claudication test indicate?
How is it performed?

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

9

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

surface arterial bloodflow
3 sec or less

10

What does a positive Homans sign test indicate?

DVT