chapter 5

Question 1

capabilites of doppler segmental pressures? (4)

Answer 1

identifies presence and severity of AOD
provides baseline
evaluates treatment plan
results combined with waveforms

Question 2

limitations of doppler segmental pressures? (5)

Answer 2

can only identify general location
can falsely elevate pressures
cuff too narrow=elevated pressure
multilevel disease
can't take over a stent

Question 3

how should you prep and position the patient?

Answer 3

patient should rest for 20 min prior to exam

same as waveform prep

Question 4

what probe should be used?

Answer 4

8-10 MHz

Question 5

pressures may be falsely elevated if

Answer 5

cuffs are too loose

Question 6

steps for obtaining ABI

Answer 6

1. obtain bilateral brachial pressures
2. use highest pressure for denominator
3. obtain PTA and DPA
4. use highest ankle pressure for numerator

Question 7

incompressible vessels are usually found in

Answer 7

diabetic and renal failure patients

Question 8

incompressible vessels have a _____ ABI

Answer 8

> 1.3-1.5

Question 9

vertically a decrease of ______ indicates disease

Answer 9

30 mmHg

Question 10

horizontally a decrease of _____ indicates diseae

Answer 10

20-30 mmHg or greater

Question 11

compare 3 cuff and 4 cuff technique in relation to thigh pressures

Answer 11

3 cuff–accurate thigh pressure

4 cuff–falsely elevated thigh pressure

Question 12

compare 3 cuff and 4 cuff technique in relation to proximal and distal thigh disease

Answer 12

3 cuff–cannot distinguish between prox and distal thigh disease

4 cuff–can distinguish between prox and distal thigh disease

Question 13

compare 3 cuff and 4 cuff technique in relation to thigh and brachial pressure

Answer 13

3 cuff–thigh similar to brachial

4 cuff–high thigh 30mmHg greater than highest brachial