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15 Cards in this Set
- Front
- Back
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Name 4 capabilities of Digital pressures/PPG's
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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. |
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There are several limitations with digital pressures and PPG's name them.
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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 |
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What is the correct patient positioning for toe elevation PPG/pressures
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Supine, head slightly elevated (10-20 degrees)
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What is the correct patient positioning for Finger elevation PPG's/pressures
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Patient sitting with a pillow in lap/arms resting on it with palms up.
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The general technique for toe PPG's/pressures are as follows
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Keep patient warm
Appropriate size cuff applied PPG wave form from eah digit Pressures taken from Great toes bilaterally |
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List the A, B, C Technique of obtaining toe pressures.
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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.} |
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with the UEA exams; what technique is used to rule out proximal disease.
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Bilaterl pressures are taken at the upper arm (brachial) and forearm
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Which arteries supply blood to the palmer arch
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the Radial and Ulnar arch.
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What size cuff is used for finger pressures?
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2.0 -2.5 cm cuffs
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What is the appropriate width for the finger cuff?
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at least 1.2 times that of the digit
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pressures for digits are obtained using which plethysmographic technique
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PPG &
SPG |
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When is the UEA/LEA with cold stress performed?
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in patients with symptoms of sensativity to cold.
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Wha type of wave forms does ORGANIC (FIXED) disease produce
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Abnormal-Doppler, PPG's and Pressures
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What type of waveforms does FUNCTIONAL (INTERMITTEN) disease produce.
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Normal -Doppler, PPG's and Pressures
BUT! Abnormal after Cold stimuli |
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When is a cold stress procedure considered abnormal.
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when the signal fails to return to baseline levels in 5 minutes
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