Digital Pressures and Plethysmography Flashcards
1
Q
after resting study, digits are immersed in ice-cold water for ___
A
3 minutes
2
Q
when to obtain waveforms and pressures after cold stress test
A
immediately after cold stress
5 minutes after cold stress
3
Q
normal finger/brachial index
A
0.8 - 0.9
4
Q
normal toe pressures range from ___ of the brachial pressure
values significantly less suggest ___
A
60% to 80%
digital arterial occlusive disease
5
Q
organic (fixed) occlusive disease produces abnormal (3)
A
Doppler arterial signals
systolic pressure measurements
PPG tracings
6
Q
functional (intermittent) obstructive disease produces normal findings but abnormal findings after ___
A
cold stimulation
7
Q
abnormal cold sensitivity if amplitude fails to return to baseline levels within ___
A
5 minutes
