Which change is NOT normally found in Doppler spectral waveforms from elderly patients?
A) Loss of the reverse diastolic flow component
B) A reduction in the peak diastolic forward velocity
C) A decrease in the peak systolic velocity
D) A decrease in vessel wall elasticity

Question

Quizplus · Accepted Answer

Arterial wall compliance (elasticity) commonly decreases with age. The peak systolic and diastolic forward velocities may decrease, resulting in a biphasic waveform. This waveform lacks the diastolic forward flow component. The diastolic reversed flow component remains as a sign of normal peripheral resistance. Loss of the reverse flow component signifies a flow demand that may be associated with flow-reducing arterial disease or vasodilatation caused by exercise or medication.

Which Change Is NOT Normally Found in Doppler Spectral Waveforms