Laser Doppler

Question 1

laser Doppler helps determine ___

Answer 1

the heal potential of a wound, ulcer, and amputation level

Question 2

laser Doppler helps evaluate ___

Answer 2

pedal arterial flow in diabetics

Question 3

laser Doppler assesses the characteristics of ___ in the capillary beds of the skin

Answer 3

microvascular blood volume

Question 4

Laser Doppler

to obtain pulse volume (PV) waveform
toe cuff is inflated to ___
all other cuffs inflated to ___

Answer 4

toe - 40mmHg
all other cuffs - 65mmHg

Question 5

Laser Doppler

___ mode is activated

Answer 5

skin perfusion pressure (SPP)

Question 6

Laser Doppler

cuff is inflated to 100mmHg and pressure is held for ___ while examiner watches for the volume indicator to drop below ___

Answer 6

cuff is inflated to 100mmHg and pressure is held for 10 seconds while examiner watches for the volume indicator to drop below 0.1%

Question 7

Laser Doppler

once volume is < 0.1% , ___ is obtained

Answer 7

skin perfusion pressure (SPP)

Question 8

Laser Doppler

cuff is slowly deflated using the bleed value
___mmHg for every ___ seconds

Answer 8

10mmHg for every 5 seconds

Question 9

SPP interpretation

likely to heal =
marginal for healing =
less likely to heal =

Answer 9

SPP interpretation

likely to heal (> 40mmHg)
marginal for healing (30 - 40mmHg)
less likely to heal (< 30mmHg)