ARRT Vascular Interventional Radiography (VI)
Exam With Actual Questions & Verified
Answers, Plus Explained Rationales/Expert
Verified For Guaranteed 100% Pass
2026/Latest Update/Instant Download Pdf
1. Which imaging modality is most commonly used for real-time
guidance during vascular interventional procedures?
A. CT
B. MRI
C. Fluoroscopy
D. Ultrasound
Answer: C. Fluoroscopy
Rationale: Fluoroscopy provides continuous real-time X-ray
imaging, making it the standard for guiding catheters and wires
during vascular interventions.
2. The primary purpose of a hemostatic valve on an introducer
sheath is to:
A. Increase blood flow
B. Prevent air embolism and blood loss
C. Measure pressure gradients
D. Dilate the vessel
Answer: B. Prevent air embolism and blood loss
Rationale: Hemostatic valves maintain a closed system,
preventing air entry and minimizing blood loss during catheter
exchanges.
,3. Which contrast agent is most commonly used in vascular
interventional radiography?
A. Barium sulfate
B. Iodinated contrast
C. Gadolinium
D. Carbon dioxide only
Answer: B. Iodinated contrast
Rationale: Iodinated contrast is water-soluble and provides
excellent vascular opacification under fluoroscopy.
4. What is the primary risk of excessive fluoroscopy time?
A. Hypothermia
B. Radiation-induced skin injury
C. Hyperglycemia
D. Dehydration
Answer: B. Radiation-induced skin injury
Rationale: Prolonged fluoroscopy increases skin dose, potentially
causing deterministic radiation injury.
5. Which artery is most commonly accessed for diagnostic cerebral
angiography?
A. Brachial artery
B. Femoral artery
C. Radial artery
D. Popliteal artery
Answer: B. Femoral artery
Rationale: The common femoral artery provides a large, straight
access route to the cerebral circulation.
6. A guidewire is primarily used to:
A. Inject contrast
B. Provide a path for catheter advancement
, C. Measure blood pressure
D. Stop bleeding
Answer: B. Provide a path for catheter advancement
Rationale: Guidewires create a track over which catheters can
safely be advanced through vessels.
7. What is the most serious complication of arterial dissection during
angiography?
A. Mild pain
B. Vessel rupture and ischemia
C. Bruising
D. Nausea
Answer: B. Vessel rupture and ischemia
Rationale: Dissection can compromise blood flow or lead to
vessel rupture, causing ischemia or hemorrhage.
8. Heparin is used during interventional procedures primarily to:
A. Increase blood pressure
B. Prevent clot formation
C. Dilate vessels
D. Reduce pain
Answer: B. Prevent clot formation
Rationale: Heparin is an anticoagulant that reduces the risk of
thrombosis during catheter-based procedures.
9. The Seldinger technique involves:
A. Surgical vessel removal
B. Needle puncture, guidewire insertion, and catheter placement
C. Ultrasound-only access
D. Radiation shielding
Answer: B. Needle puncture, guidewire insertion, and catheter
placement
Exam With Actual Questions & Verified
Answers, Plus Explained Rationales/Expert
Verified For Guaranteed 100% Pass
2026/Latest Update/Instant Download Pdf
1. Which imaging modality is most commonly used for real-time
guidance during vascular interventional procedures?
A. CT
B. MRI
C. Fluoroscopy
D. Ultrasound
Answer: C. Fluoroscopy
Rationale: Fluoroscopy provides continuous real-time X-ray
imaging, making it the standard for guiding catheters and wires
during vascular interventions.
2. The primary purpose of a hemostatic valve on an introducer
sheath is to:
A. Increase blood flow
B. Prevent air embolism and blood loss
C. Measure pressure gradients
D. Dilate the vessel
Answer: B. Prevent air embolism and blood loss
Rationale: Hemostatic valves maintain a closed system,
preventing air entry and minimizing blood loss during catheter
exchanges.
,3. Which contrast agent is most commonly used in vascular
interventional radiography?
A. Barium sulfate
B. Iodinated contrast
C. Gadolinium
D. Carbon dioxide only
Answer: B. Iodinated contrast
Rationale: Iodinated contrast is water-soluble and provides
excellent vascular opacification under fluoroscopy.
4. What is the primary risk of excessive fluoroscopy time?
A. Hypothermia
B. Radiation-induced skin injury
C. Hyperglycemia
D. Dehydration
Answer: B. Radiation-induced skin injury
Rationale: Prolonged fluoroscopy increases skin dose, potentially
causing deterministic radiation injury.
5. Which artery is most commonly accessed for diagnostic cerebral
angiography?
A. Brachial artery
B. Femoral artery
C. Radial artery
D. Popliteal artery
Answer: B. Femoral artery
Rationale: The common femoral artery provides a large, straight
access route to the cerebral circulation.
6. A guidewire is primarily used to:
A. Inject contrast
B. Provide a path for catheter advancement
, C. Measure blood pressure
D. Stop bleeding
Answer: B. Provide a path for catheter advancement
Rationale: Guidewires create a track over which catheters can
safely be advanced through vessels.
7. What is the most serious complication of arterial dissection during
angiography?
A. Mild pain
B. Vessel rupture and ischemia
C. Bruising
D. Nausea
Answer: B. Vessel rupture and ischemia
Rationale: Dissection can compromise blood flow or lead to
vessel rupture, causing ischemia or hemorrhage.
8. Heparin is used during interventional procedures primarily to:
A. Increase blood pressure
B. Prevent clot formation
C. Dilate vessels
D. Reduce pain
Answer: B. Prevent clot formation
Rationale: Heparin is an anticoagulant that reduces the risk of
thrombosis during catheter-based procedures.
9. The Seldinger technique involves:
A. Surgical vessel removal
B. Needle puncture, guidewire insertion, and catheter placement
C. Ultrasound-only access
D. Radiation shielding
Answer: B. Needle puncture, guidewire insertion, and catheter
placement
