Assessing Blood Flow Through Diseased Vessels by Palpation Is Often

Assessing blood flow through diseased vessels by palpation is often difficult.Assessment of the patient's hemodynamic status during surgery can be further complicated by spasm of the vessel walls,the cool environment of the OR,and alterations in blood pressure caused by hemorrhage.Vascular monitoring during carotid endarterectomy (CEA) is critical to determine the quality of cerebral perfusion.What vascular monitoring device is employed during CEA and what important surgical need is determined by its results?

A) Doppler,need for embolectomy
B) Laser flow cytometry,need for increased IV fluids
C) Electromyogram (EMG) ,need for muscle relaxants
D) Electroencephalogram (EEG) ,need for a shunt

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