ABI Flashcards
1
Q
When we use ABI
A
- identification of PAD
- Monitoring of the progression of the disease
-Surveillance of disease after intervention such as surgical bypass
-
2
Q
what is the principle of an intervention
A
- pharmacotherapy
- exercise
-risk factor modification
3
Q
what are other assessment of arterial disease
A
-TBI, Doppler waves form analysis, pulse volume recording, doppler ultrasound recording, magnetic resonance angiography
4
Q
what data ABI provides
A
- gives functional information about arteries of lower limb
- do not provide anatomical information
5
Q
Why ABI is widely used in community
A
- it is none invasive
- reproduceable
- quick
- inexpensive
- results are easily interpreted
- assess entire arterial tree
6
Q
what are ABI limitation
A
- cannot define the degree of occlusion or location of the stenosis
- prone to measurment errors
7
Q
How does a Calcified ankle artery cause falsely elevated ABI or incompressible artery
A
- This happens when 250mmhg of pressure is applied bu the pressure cuff and pulse is still heard
8
Q
How to preform ABI
A
- Ptient must lie supine, both feet and arm are at the same level. This is because to overcome the gravity
9
Q
if a patient have a flasely elevated ABI, what is the alternetive
A
- TBI measurement is more reliable, this is becuase the digital artery of toes are less likely to be calcified than Tibial arteries
- Normal TBI range is 0.6
10
Q
When to use PPG test
A
- it is used to predict the lilkelyhood of healing when ulceration is present
11
Q
what are the limitation of PPG test
A
- Tempreture variation
- PPGressure
- Light
- Movment
