Doppler Segmental Pressures - Lower Extremities

Question 1

patient should be rested for at least ___ before testing segmental pressures

Answer 1

20 minutes

Question 2

locations of the four-cuff technique

Answer 2

high thigh
low thigh
below knee
ankle

Question 3

locations of the three-cuff technique

Answer 3

high thigh
calf
ankle

Question 4

when obtaining segmental Doppler pressures, start at the ___ and move ___

Answer 4

start at the ankle and move proximal

Question 5

when obtaining segmental Doppler pressures, inflate the cuff ___mmHg beyond the last audible signal

Answer 5

20 - 30mmHg

Question 6

ABI =

Answer 6

ABI = ankle pressure / higher of the two brachial pressures

Question 7

normal ABI

Answer 7

> 1.0

Question 8

ABI - asymptomatic minimal obstructive disease

Answer 8

> 0.9 - 1.0

Question 9

ABI - mild arterial disease

Answer 9

0.8 - 0.9

Question 10

ABI - claudication (moderate disease)

Answer 10

0.5 - 0.8

Question 11

ABI - rest pain (severe arterial disease)

Answer 11

< 0.5

Question 12

a decrease in pressure of >30mmHg between two consecutive levels suggest ___

Answer 12

significant obstruction

Question 13

treadmill testing helps differentiate between ___ and ___

Answer 13

true claudication and pseudoclaudication

Question 14

treadmill testing determines the presence of absence of ___

Answer 14

collaterals

Question 15

treadmill testing

≤ 12% elevation and ___ miles/hour for a max of 5 minutes

Answer 15

1.5 miles/hours

Question 16

treadmill testing

postexercise ABIs are obtained every ___ minutes until pre-exercise pressures are obtained

Answer 16

every 2 minutes

Question 17

treadmill testing

ankle pressures that drop to low/unrecordable levels immediately after exercise and then increase to resting levels in 2 to 6 minutes suggest ____

Answer 17

single level obstruction

Question 18

treadmill testing

ankle pressures that drop to low/unrecordable levels immediately after exercise and then increase to resting levels in more than 6 minutes suggest ____

Answer 18

multilevel obstruction

Question 19

alternate method to treadmill testing when mobility, lungs, and heart are compromised

Answer 19

reactive hyperemia

Question 20

reactive hyperemia

cuffs are inflated 20 - 30mmHg above the higher brachial BP and maintained for ___ minutes

Answer 20

3 to 5 minutes

Question 21

normal ankle systolic pressures

after treadmill test -
after reactive hyperemia -

Answer 21

after treadmill test - no decrease
after reactive hyperemia - decrease 17% to 34%

Question 22

single level disease - ankle pressures drop ___

Answer 22

ankle pressure drop < 50%

Question 23

multi level disease - ankle pressures drop ___

Answer 23

ankle pressures drop > 50%

Question 24

toe pressures of ___ are evident in cases of foot and toe ulcers that fail to heal

Answer 24

30mmHg or less