CCI RVS EXAM SCRIPT 2026 TEST PAPER
QUESTIONS AND SOLUTIONS GRADED A+
◉ False Reduction in the ankle pressure is due to what 3 things?
Answer: 1. cuff too large
2. CHF
3. Coarctation
◉ What system control can reduce the appearance of color flash
artifact? Answer: Decreasing color priority
◉ Higher threshold settings display _____ color . Also means _____
color priority Answer: more, higher
◉ Lower threshold settings display ______ color. Also means ______
color priority Answer: less, lower
◉ The higher the pressure gradient, the __________ the velocity
Answer: higher
◉ Increased acceleration time indicates a _________ stenosis Answer:
proximal
,◉ A fem- fem graft can be used to correct __________ Answer:
unilateral iliac stenosis
◉ Abdominal exams are usually best performed with a frequency of
________ Answer: 2-4MHz
◉ LEA duplex exams are usually best performed with a frequency of
___________ Answer: 5-7MHz
◉ If the external iliac artery is occluded, what vessels provide the
potential for collateral flow to the extremity? Answer: inferior
epigastric artery and deep circumflex artery
◉ Venous gangrene usually involves the ___________ Answer: The foot
and all toes
◉ Arterial gangrene usually involves ________ Answer: one or two
toes
◉ What is the most common cause of venous stasis ulcer formation
on the distal medial calf? Answer: insufficiency in the posterior
tibial perforators and the posterior arch vein
,◉ __________ refers to pain in the calf with quick dorsiflexion of the
foot, seen with DVT Answer: Homan's sign
◉ The _____________ indicates a damaged nerve at the wrist and is
associated with hypothenar hammer syndrome Answer: Tinel sign
◉ As stenosis increases, the pressure _________ at the stenosis and the
resistance _______ . The velocity of flow ______ Answer: decreases,
increases, increases
◉ if you detect flow toward the transducer in the right ACA while
using the temporal window, what should be suspected? Answer:
occlusion of the right ICA
◉ Volume flow calculations are used to assess hemodialysis graft
performance. How is volume flow measured? Answer: Open the
sample volume from wall to wall within a normal segment of the
graft and trace the waveform
◉ The achilles tendon is a landmark for which deep calf vein?
Answer: PTV
◉ ______ seconds or less of flow reversal is considered normal in the
SUPERFICIAL veins Answer: 0.5 sec
, ◉ ________ sec or less of flow reversal is considered normal in DEEP
veins Answer: 1 sec
◉ _____ sec or greater of flow reversal indicates significant venous
reflux Answer: 3 secs
◉ __________ filter settings would improve venous flow visualization
Answer: Low
◉ Overestimation of stenosis in the ICA can be seen with (6):
Answer: 1. Systemic HTN
2. Compensatory flow due to stenosis on other side
3. Short area of focal stenosis
4. Smaller vessel size
5. Elevated HR
6. Measuring a compensatory heart beat w/ arrhythmias
◉ Which transducer should be selected for a renal artery Doppler
exam for a pt that is 5'5" and 150lbs? Answer: 3.5MHz curvilinear
array
◉ Larger packet size = ______ temporal resolution Answer: degraded
QUESTIONS AND SOLUTIONS GRADED A+
◉ False Reduction in the ankle pressure is due to what 3 things?
Answer: 1. cuff too large
2. CHF
3. Coarctation
◉ What system control can reduce the appearance of color flash
artifact? Answer: Decreasing color priority
◉ Higher threshold settings display _____ color . Also means _____
color priority Answer: more, higher
◉ Lower threshold settings display ______ color. Also means ______
color priority Answer: less, lower
◉ The higher the pressure gradient, the __________ the velocity
Answer: higher
◉ Increased acceleration time indicates a _________ stenosis Answer:
proximal
,◉ A fem- fem graft can be used to correct __________ Answer:
unilateral iliac stenosis
◉ Abdominal exams are usually best performed with a frequency of
________ Answer: 2-4MHz
◉ LEA duplex exams are usually best performed with a frequency of
___________ Answer: 5-7MHz
◉ If the external iliac artery is occluded, what vessels provide the
potential for collateral flow to the extremity? Answer: inferior
epigastric artery and deep circumflex artery
◉ Venous gangrene usually involves the ___________ Answer: The foot
and all toes
◉ Arterial gangrene usually involves ________ Answer: one or two
toes
◉ What is the most common cause of venous stasis ulcer formation
on the distal medial calf? Answer: insufficiency in the posterior
tibial perforators and the posterior arch vein
,◉ __________ refers to pain in the calf with quick dorsiflexion of the
foot, seen with DVT Answer: Homan's sign
◉ The _____________ indicates a damaged nerve at the wrist and is
associated with hypothenar hammer syndrome Answer: Tinel sign
◉ As stenosis increases, the pressure _________ at the stenosis and the
resistance _______ . The velocity of flow ______ Answer: decreases,
increases, increases
◉ if you detect flow toward the transducer in the right ACA while
using the temporal window, what should be suspected? Answer:
occlusion of the right ICA
◉ Volume flow calculations are used to assess hemodialysis graft
performance. How is volume flow measured? Answer: Open the
sample volume from wall to wall within a normal segment of the
graft and trace the waveform
◉ The achilles tendon is a landmark for which deep calf vein?
Answer: PTV
◉ ______ seconds or less of flow reversal is considered normal in the
SUPERFICIAL veins Answer: 0.5 sec
, ◉ ________ sec or less of flow reversal is considered normal in DEEP
veins Answer: 1 sec
◉ _____ sec or greater of flow reversal indicates significant venous
reflux Answer: 3 secs
◉ __________ filter settings would improve venous flow visualization
Answer: Low
◉ Overestimation of stenosis in the ICA can be seen with (6):
Answer: 1. Systemic HTN
2. Compensatory flow due to stenosis on other side
3. Short area of focal stenosis
4. Smaller vessel size
5. Elevated HR
6. Measuring a compensatory heart beat w/ arrhythmias
◉ Which transducer should be selected for a renal artery Doppler
exam for a pt that is 5'5" and 150lbs? Answer: 3.5MHz curvilinear
array
◉ Larger packet size = ______ temporal resolution Answer: degraded
