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15 Cards in this Set

  • Front
  • Back
Name 4 capabilities of Digital pressures/PPG's
Helps to detect the presence of arterial disease

Differentiates fixed arterial occlusion from vasospasm

Assesses effects of treatment

Helps determine the presence/absence of sympathetic activity.
There are several limitations with digital pressures and PPG's name them.
Vasoconstriction greatly affect the quality if results i.e{smokig, cold, nervous)

Cuffs that are to tight (can obliterate/diminish wave form)

With PPG's if not applied correct = artifact/poor results

With SPG's kinked/cracked tubing, poor position=poor results

Ulcers, gangrene=prevent placement of cuffs, PPG's, & SPG's

Excessive bandages that cannot be removed
What is the correct patient positioning for toe elevation PPG/pressures
Supine, head slightly elevated (10-20 degrees)
What is the correct patient positioning for Finger elevation PPG's/pressures
Patient sitting with a pillow in lap/arms resting on it with palms up.
The general technique for toe PPG's/pressures are as follows
Keep patient warm

Appropriate size cuff applied

PPG wave form from eah digit

Pressures taken from Great toes bilaterally
List the A, B, C Technique of obtaining toe pressures.
A. PPG's applied-pulsation detected

B. Cuff inflated until signal obliterated

C. Cuff slowly deflated until signal returs

{ the key to determinng the pressure is to look at the fist returing pulsation followed by another pulsation with greater ampitude.}
with the UEA exams; what technique is used to rule out proximal disease.
Bilaterl pressures are taken at the upper arm (brachial) and forearm
Which arteries supply blood to the palmer arch
the Radial and Ulnar arch.
What size cuff is used for finger pressures?
2.0 -2.5 cm cuffs
What is the appropriate width for the finger cuff?
at least 1.2 times that of the digit
pressures for digits are obtained using which plethysmographic technique

When is the UEA/LEA with cold stress performed?
in patients with symptoms of sensativity to cold.
Wha type of wave forms does ORGANIC (FIXED) disease produce
Abnormal-Doppler, PPG's and Pressures
What type of waveforms does FUNCTIONAL (INTERMITTEN) disease produce.
Normal -Doppler, PPG's and Pressures
BUT! Abnormal after Cold stimuli
When is a cold stress procedure considered abnormal.
when the signal fails to return to baseline levels in 5 minutes