RVT Test Questions with Correct Answers Graded A+
Which is not likely to be evaluated in an UE duplex exam? - Answers Stenosis; occlusion b/c native artery
stenosis or occlusion due to atherosclerosis is rarely found.
A 40 y.o. was referred for a dialysis access graft. PSVs of 350+ cm/s with post-stenotic turbulence were
noted throughout the graft. The PSV of the inflow artery was 150 cm/s. What is true about this
statement? - Answers There is no standardized velocity criteria that exists at this time due to variations
in flow velocities from patient to patient.
The most common cause of an aortic aneurysm is? - Answers Atherosclerosis
The most common cause of a peaked pulse during digital plethysmography is? - Answers A specific type
of vasospastic process - usually Raynaud's.
How does vasodilatation affect resistance? - Answers Vasodilatation causes a decrease in flow
resistance.
When describing the capabilities of physiologic exams in general, what is a false statement? - Answers
You are able to discriminate between stenosis or occlusion. This is false b/c physiologic studies are
"blind" studies; it can only be described as "obstructive" or "occlusive" disease.
Blue toe syndrome is typically caused by? - Answers Arteritis, atherosclerosis or an angiographic
procedure. It is reversible.
What is required with transcutaneous oximetry (TCP02)? - Answers Manual calibration is required with
TCP02. After calibration, it takes about 15-20 minutes/site to obtatin P02.
TIPS is a shunt between? - Answers Portal vein and hepatic vein.
Edema, fluid in the subcutaneous tissue, is a result of? - Answers Decreased venous pressure.
A pulsatile, biphasic venous flow pattern could be a result of? - Answers Tricuspid insufficiency and/or
right-side heart failure.
Which vessels form the tib-peroneal trunk? - Answers The "common" posterior tibial veins and
"common" peroneal.
Venomotor tone is: - Answers Tension in the muscle coat (the stronger it is; the more capacity it has).
What is ambulatory venous hypertension? - Answers Reversal of flow in the deep or superficial veins to
prevent fall in superficial venous pressure from falling during exercise (could lead to venous ulceration).
An INCREASE in ambulatory venous HTN is the result of? - Answers An ineffective calf muscle pump.
What is the most likely hemodynamic alteration when it is associated with an acute DVT? - Answers
Decreased pressure gradient between arteriole and venule.
, Veins are able to accommodate an increase in volume without a significant increase in pressure due to?
- Answers Vessel compliance.
A patient presents with a unilateral LE that is swollen, red, painful, and has ACCELERATED venous flow
most likely has? - Answers Hyperemic flow associated with an inflammatory process.
Continuous (versus phasic) venous flow is consistent with a? - Answers Proximal obstruction.
A Right IJV presents with continuous venous flow. Where is the obstruction? - Answers Proximal -
superior vena cava.
How does proximal compression affect flow? - Answers It halts flow momentarily.
Tardus pardus flow may indicate? - Answers Proximal stenosis
If you angle correct from 40 to 60, how would that change the velocity? - Answers The velocity will
increase.
Why would a patient be referred to the lab for radial artery mapping? - Answers Determine viability for
use during coronary bypass.
The best choice for transducer frequency when assessing abdominal vessels is? - Answers 2-4 MHz
What noninvasive findings are associated with graft failure? - Answers Reduced flow velocities
What is least important for a successful bypass graft? - Answers Collateral branches
Celiac artery stenosis/compression is seen during? - Answers The expiratory phase of the respiratory
cycle
Criteria for > 60% renal stenosis are PSVs that are? - Answers 180-200 cm/sec or greater with post-
stenotic turbulence
When comparing ABIs, what is considered an abnormal drop? - Answers Any drop in ABI of > 0.15
What is not considered an abnormal finding when it comes to the Celiac Artery? - Answers Celiac
stenosis is < 70%
What is the distinct difference betewen MR and CT? - Answers MR uses radio-frequency energy; CT uses
ionizing radiation
What is the secondary criteria for 60% or greater stenosis, if the RAR is unattainable? - Answers Renal
PSVs that are180-200 cm/sec or greater associated with post-stenotic turbulence.
A fistula closer to the heart may cause - Answers Heart failure (not ischemia)
The 2 most common sites for stenosis for grafts? - Answers Venous anastomosis and the venous outflow
vein.
Which is not likely to be evaluated in an UE duplex exam? - Answers Stenosis; occlusion b/c native artery
stenosis or occlusion due to atherosclerosis is rarely found.
A 40 y.o. was referred for a dialysis access graft. PSVs of 350+ cm/s with post-stenotic turbulence were
noted throughout the graft. The PSV of the inflow artery was 150 cm/s. What is true about this
statement? - Answers There is no standardized velocity criteria that exists at this time due to variations
in flow velocities from patient to patient.
The most common cause of an aortic aneurysm is? - Answers Atherosclerosis
The most common cause of a peaked pulse during digital plethysmography is? - Answers A specific type
of vasospastic process - usually Raynaud's.
How does vasodilatation affect resistance? - Answers Vasodilatation causes a decrease in flow
resistance.
When describing the capabilities of physiologic exams in general, what is a false statement? - Answers
You are able to discriminate between stenosis or occlusion. This is false b/c physiologic studies are
"blind" studies; it can only be described as "obstructive" or "occlusive" disease.
Blue toe syndrome is typically caused by? - Answers Arteritis, atherosclerosis or an angiographic
procedure. It is reversible.
What is required with transcutaneous oximetry (TCP02)? - Answers Manual calibration is required with
TCP02. After calibration, it takes about 15-20 minutes/site to obtatin P02.
TIPS is a shunt between? - Answers Portal vein and hepatic vein.
Edema, fluid in the subcutaneous tissue, is a result of? - Answers Decreased venous pressure.
A pulsatile, biphasic venous flow pattern could be a result of? - Answers Tricuspid insufficiency and/or
right-side heart failure.
Which vessels form the tib-peroneal trunk? - Answers The "common" posterior tibial veins and
"common" peroneal.
Venomotor tone is: - Answers Tension in the muscle coat (the stronger it is; the more capacity it has).
What is ambulatory venous hypertension? - Answers Reversal of flow in the deep or superficial veins to
prevent fall in superficial venous pressure from falling during exercise (could lead to venous ulceration).
An INCREASE in ambulatory venous HTN is the result of? - Answers An ineffective calf muscle pump.
What is the most likely hemodynamic alteration when it is associated with an acute DVT? - Answers
Decreased pressure gradient between arteriole and venule.
, Veins are able to accommodate an increase in volume without a significant increase in pressure due to?
- Answers Vessel compliance.
A patient presents with a unilateral LE that is swollen, red, painful, and has ACCELERATED venous flow
most likely has? - Answers Hyperemic flow associated with an inflammatory process.
Continuous (versus phasic) venous flow is consistent with a? - Answers Proximal obstruction.
A Right IJV presents with continuous venous flow. Where is the obstruction? - Answers Proximal -
superior vena cava.
How does proximal compression affect flow? - Answers It halts flow momentarily.
Tardus pardus flow may indicate? - Answers Proximal stenosis
If you angle correct from 40 to 60, how would that change the velocity? - Answers The velocity will
increase.
Why would a patient be referred to the lab for radial artery mapping? - Answers Determine viability for
use during coronary bypass.
The best choice for transducer frequency when assessing abdominal vessels is? - Answers 2-4 MHz
What noninvasive findings are associated with graft failure? - Answers Reduced flow velocities
What is least important for a successful bypass graft? - Answers Collateral branches
Celiac artery stenosis/compression is seen during? - Answers The expiratory phase of the respiratory
cycle
Criteria for > 60% renal stenosis are PSVs that are? - Answers 180-200 cm/sec or greater with post-
stenotic turbulence
When comparing ABIs, what is considered an abnormal drop? - Answers Any drop in ABI of > 0.15
What is not considered an abnormal finding when it comes to the Celiac Artery? - Answers Celiac
stenosis is < 70%
What is the distinct difference betewen MR and CT? - Answers MR uses radio-frequency energy; CT uses
ionizing radiation
What is the secondary criteria for 60% or greater stenosis, if the RAR is unattainable? - Answers Renal
PSVs that are180-200 cm/sec or greater associated with post-stenotic turbulence.
A fistula closer to the heart may cause - Answers Heart failure (not ischemia)
The 2 most common sites for stenosis for grafts? - Answers Venous anastomosis and the venous outflow
vein.
