What law defines the relationship between pressure, volume flow, and resistance?
Poiseuille’s Law
A stenosis usually becomes hemodynamically significant when the cross-sectional area of the arterial lumen is reduced ______%
75%
Which artery is a continuation of the anterior tibial artery, courses in front of the ankle and terminates toward the base of the first toe?
Dorsalis Pedis Artery
List the cuff bladder size for the ankle?
10
List the cuff bladder size for the below knee, above knee, and high thigh:
12, 12, 12
Which of the following is an advantage of using the 4 cuff technique over the 3 cuff technique?
A. a more accurate thigh pressure is obtained
B. no cuff artifact is obtained
C. disease can be differentiated between prox and distal thigh
D. the high thigh cuff is appropriately sized for the limb location
C. disease can be differentiated between proximal and distal thigh
Describe disease severity of 1.3-1.5 ABI values:
incompressible arteries, diabetes or renal failure
Describe disease severity of >1 ABI values:
normal
Describe disease severity of >0.9-1.0 ABI values
asymptomatic obstructive disease (borderline)
Describe disease severity of >0.5-0.9 ABI values:
claudication (mild-moderate disease)
Describe disease severity of <0.5 ABI values:
rest pain range (severe disease)
A horizontal difference of 20-30mmHg or more suggests obstruction where?
at or above the level of the leg with the lower pressure
Claudication may be described accurately as:
Pain that occurs in a muscle when the patient is exercising their legs and it goes away when they stop
Which risk factor for arterial disease contributes to medial calcification in the lower extremity arteries and leads to poor sensation in the legs and feet as a result of neuropathy?
diabetes
Does anyone care about this shit?
Ok good, me either.