Digit Plethysmography and pressures

Question 1

Quality of tracings greatly affected by the vasoconstricted state of arteries before testing begins. (patient just come in from cold weather? Patient been smoking?)

Answer 1

Limitations

Question 2

Volume plethysmography Cuffs applied to tightly can diminish the wave forms.

Answer 2

Limitations

Question 3

Photo plethysmography Improper contact with the skin surface will cause poor results

Answer 3

Limitations

Question 4

Supine with some elevation of head

Answer 4

Toe evaluation

Question 5

Sitting with arms resting on pillow placed on patient’s lap

Answer 5

Finger evaluation

Question 6

The study is done with a combination with a complete LE arterial exam, or a limited version such as an ABI

Answer 6

Toe technique

Question 7

The width of the cuff should be at least how much greater than the toe?

Answer 7

1.2

Question 8

The size of the cuff is

Answer 8

2.5 - 3 cm

Question 9

The cuff is placed at the ______ of the toe?

Answer 9

base

Question 10

While pulsations are being recorded cuff is inflated to

Answer 10

20 - 30mmHg above highest brachial P.
(toe)

Question 11

Cuff is slowly deflated, watching for the return of the _______

Answer 11

first pulse to define the pressure levels
(toe)

Question 12

Upper extremity arterial study is completed initially

Answer 12

Fingers without cold stress

Question 13

After resting study is performed, hands are immersed in ice cold water for?

Answer 13

3 minutes if possible (induce spasms)

Question 14

After the cold stress waveforms and pressures are obtained?

Answer 14

Immediately after and five minutes after

Question 15

Sharp upstroke during systole
Reflected wave seen on down slope

Answer 15

Normal waveform qualities

Question 16

Slow upslope to rounded peak
Downslope that bows away from baseline

Answer 16

Abnormal waveforms qualities

Question 17

Upslope is slowed
Reflected wave located high on the downslope
Has qualities of both normal and obstructive waveforms.

Answer 17

Abnormal peaked waveform qualities

Question 18

obstructive disease has abnormal Doppler arterial signals, systolic pressures and PPG tracings

Answer 18

Organic (fixed)

Question 19

Disease has normal Doppler signals and pressures, and / or PPG tracings; but abnormal after cold stress.

Answer 19

Functional (intermittent)

Question 20

Pulse is unique to the waveform contours of patients with Raynaud’s phenomena

Answer 20

“peaked”

Question 21

Following cold immersion, abnormal cold sensitivity is likely if the amplitude fails to return to the baseline levels within

Answer 21

5 minutes

Question 22

Finger/brachial indices 0.8 - 0.9

Answer 22

UE digits

Question 23

Toe/Brachial Index (TBI)

Answer 23

LE digits

Question 24

Normal toe pressure vary from ________ of brachial pressures

Answer 24

60-80%