Examination of LE arterial Flashcards
indications for a LE Arterial Duplex
patency of arteries
collateral circulation
atherosclerotic plaque
graft
aneurysm
symptoms of a LE arterial disease
impairment in walking
ischemic rest pain
absent peripheral pulses
dry and scaly skin
gangrene
sores on feet
cyanosis
5 P’s of ACUTE arterial disease
- Pain
- Pulselessness
- Pallor: change in color
- Paresthesia: numbness
- paralysis
what is ABI
ankle brachial index
pressures are compared
normal ABI
1:1 ratio to 1:1.4
how much of a pressure drop is indicative of a arterial disease
20-30 mg/mercury
PVR
graph of a pulsatile change
what do abnormal PVR look likes
slow rise time
flat, rounded peak
absent notch
concave down
what is pallor
change in color or temp. of the limb
what is paresthesia
numbness
a drop of pressure between 20 and 30 is indicative of
arterial disease
abi less than .9
PAD mild
abi between .4-.7
moderate PAD
Abi less than .4
severe PAD
abi greater than 1.4
arteries may be stiff due to age or diabetes
what is exercise ABI testing
used for younger patients
used to confirm intermittent claudication
Lower Extremity arteries
common femoral artery
profunda artery
femoral
pop artery
anterior tib artery
peroneal arteries
post tib artery
diameter stenosis greater than 50 what is the PSV
greater than 2.0
diameter stenosis less than or equal to 50 what is the PSV
lesser than or equal to 2.0
how do we know a bypass graft is failing
the velocities are below 40 m/s
