Chapter 5 Doppler Segmenal Pressures (lower extremity)

Question 1

How long should a patient rest prior to the exam

Answer 1

20 minutes

Question 2

If the cuff is too large for a limb segment and happens to the BP

Answer 2

It is falsely lower

Question 3

If the cuff pressure is too narrow for a limb segment what happens to the BP

Answer 3

It is falsely higher

Question 4

Width of cuff should be about _______% greater than diameter of limb

Answer 4

20%

Question 5

What frequency probe should be used

Answer 5

8-10 MHz

Question 6

The angle of the CW Doppler probe should be how many degrees to the skin

Answer 6

45-60

Question 7

Angle the probe so blood flow moves

A) antegrade
B) retrograde

Answer 7

A) antegrade

Question 8

You must start at the ______ and move _____ to eliminate the possibility of underestimating the systolic pressure measurement

Answer 8

Ankle, proximally

Question 9

If pressure measurements must be repeated the cuff should be fully deflated for about how many minutes prior to repeat inflation

Answer 9

1 minute

Question 10

Inflate the cuff _____ mmHg higher than the highest brachial pressure

Answer 10

20-30 mmHg

Question 11

What does ABI stand for

Answer 11

Ankle/pressure index

Question 12

How are ABIs calculated

Answer 12

Dividing the ankle pressure by the higher of the 2 brachial pressure

Question 13

What is another term for ABI

Answer 13

Ankle/arm pressure (API)

Question 14

An brachial index of what is considered normal

Answer 14

> 1.0

Question 15

A brachial index of what is considered an asymptomatic disease or mild arterial disease

Answer 15

> 0.9-1.0

Question 16

A brachial index of what is claudication (moderate disease)

Answer 16

0.5-0.9

Question 17

A brachial index of what is rest pain and is considered severe arterial disease

Answer 17

<0.5

Question 18

An ABI of _______ is considered incompressible

Answer 18

> 1.3-1.5

Question 19

Stradness work suggest that an ABI of ____ represents single disease

Answer 19

> .5

Question 20

Strandness work suggest an ABI of ______ suggest multiple lesions

Answer 20

<.5

Question 21

Segmental pressure drops of ______ mmHg between 2 consecutive levels suggest significant obstruction

Answer 21

> 30 mmHg

Question 22

A horizontal difference of ______ mmHg suggests obstructive disease at or above the level in the leg with lower pressure

Answer 22

20-30 mmHg

Question 23

Thigh pressure is normally >30 mmHg than highest brachial pressure and the AK and BK pressures should be at least the same as the highest brachial describes what cuff technique

Answer 23

4 cuff technique

Question 24

Thigh pressure is similar to the highest brachial pressure and does not allow for differentiation of HT to AK pressures describes what cuff technique

Answer 24

3 cuff technique

Question 25

Toe pressure of _______ mmHg are evident in foot and toe ulcers that failed to heal

Answer 25

<30

Question 26

Name 5 contraindications of exercise

Answer 26

1) shortness of breath
2) hypertension
3) cardiac problems
4) stroke
5) walking problems

Question 27

What level of disease takes 2-6 minutes for the ABIs to increase back to resting levels after they dropped to low or unrecordable levels after exercise

Answer 27

Single level disease

Question 28

What level of disease takes 6-12 minutes for the ABIs to increase back to resting levels after they remained low or at unrecordable levels after exercise

Answer 28

Multi level disease

Question 29

________ _________ produces ischemia and vasodilation distal to the occluding cuffs

Answer 29

Reactive hyperemia

Question 30

What level of disease has a <50% drop in ankle pressures with reactive hyperemia

Answer 30

Single level

Question 31

What level of disease has a >50% ankle pressure drop

Answer 31

Multi level disease

Question 32

What type of testing is the preferable test because it produced a physiologic stress that reproduces a patients ischemic symptoms

Answer 32

Treadmill

Question 33

High thigh pressure should be _______ mmHg or highest brachial pressure

Answer 33

30

Question 34

Patients with rest pain usually have ABIs between

Answer 34

0.25 and 0.5