The Doppler Spectral Waveform from the Low-Resistance Internal Carotid Artery

question 29

Multiple Choice

The Doppler spectral waveform from the low-resistance internal carotid artery can be characterized by

• A) high peak systolic velocity and low diastolic flow.
• B) rapid systolic upstroke and rapid deceleration to low diastolic flow.
• C) slow systolic rise time, rapid deceleration, flow reversal in late systole, and low diastolic flow.
• D) cephalad flow throughout the cardiac cycle.

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