DMSU 241 MODULE 6 EXAM QUESTIONS
WITH 100% CORRECT ANSWERS
Which statement correctly describes the calculation of the velocity ratio at a stenosis?
A) The end diastolic velocity at the stenosis divided by the peak systolic velocity at the
stenosis
B) The peak systolic velocity at the stenosis divided by the peak systolic velocity just
proximal to the stenosis
C) The peak systolic velocity proximal to the stenosis divided by the peak systolic
velocity at the stenosis
D) The peak systolic velocity at the stenosis divided by the peak systolic velocity just
distal to the stenosis. - Answer- B) The peak systolic velocity at the stenosis divided by
the peak systolic velocity just proximal to the stenosis
Which diagnostic technique provides a more precise assessment of functional patency?
A) Duplex ultrasound
B) Ankle-brachial indices
C) Contrast angiography
D) Magnetic resonance angiography - Answer- A) Duplex ultrasound
A velocity ratio of 2:3 is associated with which of the following?
A) Ankle artery velocity spectra that is delayed and dampened
B) Toe pressures <30 mm Hg
C) Ankle artery velocity spectra which is near normal
D) An ankle-brachial index of less than 0.5 - Answer- C) Ankle artery velocity spectra
which is near normal
An angioplasty site restenosis is also associated with which of the following?
A) An ankle pressure of less than 80 mm Hg
B) An ankle pressure of less than 50 mm Hg
C) An ankle-brachial index decrease of 0.10
D) An ankle-brachial index decrease >0.15 mm Hg - Answer- D) An ankle-brachial index
decrease >0.15 mm Hg
Stent angioplasty produces which of the following changes?
A) Weakness in the vessel wall and dilation
, B) A decrease in vessel wall compliance
C) An increase in vessel capacitance
D) A decrease in vessel wall collagen - Answer- B) A decrease in vessel wall
compliance
This is thought to potentiate the development of myointimal hyperplasia.
A) Nonuniform wall sheer stress
B) Increased transmural pressure
C) Hypercholesterolemia
D) Decreased peak systolic velocities - Answer- A) Nonuniform wall sheer stress
Once an angioplasty site thromboses and then undergoes an additional procedure to
restore patency, the outcome status is now termed
A) Assisted primary patency
B) Secondary patency
C) Revised patency
D) Primary adjusted patency - Answer- B) Secondary patency
Percutaneous transluminal angioplasty involves
A) Passage of a guidewire across the stenosis, then deployment of a stent
B) Plaque debulking and then deployment of a stent
C) Passage of a guidewire, inflation of a balloon, or deployment of a stent
D) Passage of a guidewire through the arterial wall layers then opening a new lumen
with a balloon or stent deployment - Answer- C) Passage of a guidewire, inflation of a
balloon, or deployment of a stent
In a claudicant, following successful endovascular treatment, which of the following
should occur?
A) Postprocedure ankle brachial index should be 50% greater than preprocedure
B) Postprocedure ankle brachial index should be greater than 0.9
C) Postprocedure toe pressure should be above 70 mm Hg
D) Postprocedure toe pressure should be above 50 mm Hg - Answer- B) Postprocedure
ankle brachial index should be greater than 0.9
Imaging of the angioplasty site is not necessary if
A) The patient is asymptomatic
B) The tibial artery peak systolic velocity is greater than 80 cm/s
C) The tibial artery spectra is multiphasic
D) The ankle-brachial index is improved by at least 15% of the preprocedure value -
Answer- C) The tibial artery spectra is multiphasic
WITH 100% CORRECT ANSWERS
Which statement correctly describes the calculation of the velocity ratio at a stenosis?
A) The end diastolic velocity at the stenosis divided by the peak systolic velocity at the
stenosis
B) The peak systolic velocity at the stenosis divided by the peak systolic velocity just
proximal to the stenosis
C) The peak systolic velocity proximal to the stenosis divided by the peak systolic
velocity at the stenosis
D) The peak systolic velocity at the stenosis divided by the peak systolic velocity just
distal to the stenosis. - Answer- B) The peak systolic velocity at the stenosis divided by
the peak systolic velocity just proximal to the stenosis
Which diagnostic technique provides a more precise assessment of functional patency?
A) Duplex ultrasound
B) Ankle-brachial indices
C) Contrast angiography
D) Magnetic resonance angiography - Answer- A) Duplex ultrasound
A velocity ratio of 2:3 is associated with which of the following?
A) Ankle artery velocity spectra that is delayed and dampened
B) Toe pressures <30 mm Hg
C) Ankle artery velocity spectra which is near normal
D) An ankle-brachial index of less than 0.5 - Answer- C) Ankle artery velocity spectra
which is near normal
An angioplasty site restenosis is also associated with which of the following?
A) An ankle pressure of less than 80 mm Hg
B) An ankle pressure of less than 50 mm Hg
C) An ankle-brachial index decrease of 0.10
D) An ankle-brachial index decrease >0.15 mm Hg - Answer- D) An ankle-brachial index
decrease >0.15 mm Hg
Stent angioplasty produces which of the following changes?
A) Weakness in the vessel wall and dilation
, B) A decrease in vessel wall compliance
C) An increase in vessel capacitance
D) A decrease in vessel wall collagen - Answer- B) A decrease in vessel wall
compliance
This is thought to potentiate the development of myointimal hyperplasia.
A) Nonuniform wall sheer stress
B) Increased transmural pressure
C) Hypercholesterolemia
D) Decreased peak systolic velocities - Answer- A) Nonuniform wall sheer stress
Once an angioplasty site thromboses and then undergoes an additional procedure to
restore patency, the outcome status is now termed
A) Assisted primary patency
B) Secondary patency
C) Revised patency
D) Primary adjusted patency - Answer- B) Secondary patency
Percutaneous transluminal angioplasty involves
A) Passage of a guidewire across the stenosis, then deployment of a stent
B) Plaque debulking and then deployment of a stent
C) Passage of a guidewire, inflation of a balloon, or deployment of a stent
D) Passage of a guidewire through the arterial wall layers then opening a new lumen
with a balloon or stent deployment - Answer- C) Passage of a guidewire, inflation of a
balloon, or deployment of a stent
In a claudicant, following successful endovascular treatment, which of the following
should occur?
A) Postprocedure ankle brachial index should be 50% greater than preprocedure
B) Postprocedure ankle brachial index should be greater than 0.9
C) Postprocedure toe pressure should be above 70 mm Hg
D) Postprocedure toe pressure should be above 50 mm Hg - Answer- B) Postprocedure
ankle brachial index should be greater than 0.9
Imaging of the angioplasty site is not necessary if
A) The patient is asymptomatic
B) The tibial artery peak systolic velocity is greater than 80 cm/s
C) The tibial artery spectra is multiphasic
D) The ankle-brachial index is improved by at least 15% of the preprocedure value -
Answer- C) The tibial artery spectra is multiphasic
