Which of the following is/are true with respect to assessment of the carotid circulation?
A. The external carotid artery flow pattern resembles those obtained from peripheral arteries
B. The internal carotid artery maintains forward flow throughout the cardiac cycle
C. Peak systolic velocity exceeding 200 cm/sec suggests a stenosis greater than 50%
D. An end diastolic velocity greater than 120 cm/sec suggests a stenosis greater than 80%
Answer:A
Which of the following is/are true with respect to assessment of the carotid circulation?
A. The external carotid artery flow pattern resembles those obtained from peripheral arteries B. The internal carotid artery maintains forward flow throughout the cardiac cycle C. Peak systolic velocity exceeding 200 cm/sec suggests a stenosis greater than 50% D. An end diastolic velocity greater than 120 cm/sec suggests a stenosis greater than 80%