Carolyn,
Do a base line upper arterial or lower arterial to r/o arterial
disease. Do resting PPG on all digits. Pick two of the digits with the worst
symptoms and use these for the test. Document how long ( one hand or foot at a
time) that the patient can immerse in the ice water. ( If you use gloves on the
patient, you won't have to waste time drying the hands.) Do PPG tracings
immediately after ice immersion, do PPG tracings 5 minutes after ice, 10 minutes
after ice and if the waveform has not returned by 15 minutes post ice immersion,
there is indication of vasospastic disease.
Everyone will have dampened waveforms immediately after ice
immersion. Hope this helps
Barbara Pizzo, BS
RVT
Technical Director, Vascular,
Neurologic and Non-Invasive Cardiology Services
St. Joseph Medical
Center
610 378-2802
I have not had to perform a cold immersion study in
quite some years and am being asked to perform one next week. I am having
a hard time recalling the proper protocalor finding it in the manual. The
machine I have available is a Unetixs Freedom V. Any assistance will be
greatly appreciated. Thank you in advance for your help. Carolyn
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