- A 64 year old man presents with hypertension, headache, and intermittent neurologic complaints
- Doppler ultrasound of the carotids was performed:
What peak systolic velocity serves as the cutoff for 50% stenosis of the ICA?
a. 75 cm/s
b. 100 cm/s
c. 125 cm/s
d. 150 cm/s
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