CCI RVS Test Bank | Actual Exam Questions | 100% Correct Answers | Verified 2024 Version

CCI RVS Test Bank | Actual Exam Questions | 100% Correct Answers | Verified 2024 Version What is the normal diameter for the abdominal aorta? - 2-3 cm After walking five minutes on treadmill, patient experiences decrease in ankle pressures of 40% on right and 50% on left these finding suggest - Claudication What is the correct setting for arterial volume recording? - AC-coupled output What Doppler waveform abnormality in the lower extremity arterial circulation distal to a hemodynamically significant stenosis show? - An absent flow recersal component, blunting of the peak velocity and prolonged upslope and downslope. A normal arterial volume waveform may have all except - Reverse flow component: It is part of arterial Doppler not volume waveform, does NOT have zero baseline! It does have - swift upstroke, sharp peak, rapid downslope bowed toward baseline, dicrotic notch What is a normal response of ankle pressure to exercise testing - There should be no change if normal. With severe lower extremity arterial occlusive disease, how will distal Doppler waveforms appear - Markedly dampened, possibly making interpretation difficult for distal segments. What is the usual cuff Pressures used in arterial volume recording - 65mmHg What would the CFA signal look like with aortoiliac occlusion? - Low-pitched and monophasic True or false diastolic flow reversal is always present in all abnormal limbs - False What is the most important reason Doppler evaluation should be performed with patient in a basal state and warm temperature - The results are influenced by the patient's peripheral resistance Audible Doppler Venus signals are usually low frequency and vary with respiration, whereas normal arterial signals in the arms and legs are ____ - Relatively high frequency with pulsatile components, and don't change with respiration When listening with continuous wave Doppler over a sonic lesion, you will hear high frequency or low frequency sound? - High frequency A normal PORH response is a major velocity increase of what percent increase in mean velocity - >100% What are falsely elevated less frequently than tibial ankle pressures? - toe pressures How can a PTFE graft be identified during ultrasonographic imaging? - A double-line appearance of the graft walls. Velocities measured in a reversed saphenous bypass graft are usually _____ proximally and ______ distally - Higher Lower The volume flow rate and a reversed saphenous vein bypass graph should be - The same throughout the graft, even though the velocities may differ With both arterial obstructive disease and distal ischemia, what happens to vessel size and distal resistance? - Vasodilation opens to attempt to increase nutrive blood flow to the extremity and distal resistance decreases. When you have a damped Doppler velocity wave form of the subclavian artery. Where would the significant lesion be located? - Proximal to the point of insonation Normal values in TcPO2 assessment are - 60-80mmHg