Technologist Certification Examination

Illinois Interventional Radiography Technologist Certification Examination Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• Which of the following best describes the primary purpose of a digital

subtraction angiography (DSA) procedure?

• Evaluate bone fractures
• Assess vascular structures by subtracting pre-contrast images
• Measure tissue density
• Detect pulmonary embolism

Rationale: DSA is used to visualize blood vessels by subtracting pre-

contrast images from post-contrast images.

• What is the typical gauge range of a catheter used in peripheral

angiography? 1 / 4

A. 12–14G

B. 18–20G

C. 4–6F

D. 8–10F

Rationale: Peripheral angiography catheters are usually 4–6 French

(F) in size to navigate arteries safely.

• Which imaging modality is most sensitive for detecting small hepatic

lesions during interventional procedures?

• X-ray
• Ultrasound
• CT

D. MRI

Rationale: Ultrasound allows real-time guidance and is highly

sensitive for small hepatic lesions during interventions.

• During an interventional procedure, the patient suddenly develops

bradycardia and hypotension. What is the immediate concern?

• Stroke
• Vasovagal reaction
• Pulmonary embolism
• Pneumothorax

Rationale: Bradycardia and hypotension during procedures are often

due to a vasovagal reaction. 2 / 4

• Which contrast agent is preferred for patients with renal insufficiency?
• Ionic iodinated contrast
• High-osmolar contrast
• Low-osmolar or iso-osmolar contrast
• Barium sulfate

Rationale: Low- or iso-osmolar contrast agents are safer for patients

with compromised renal function.

• What is the primary risk associated with femoral artery puncture in

angiography?

• Infection
• Hematoma formation
• Stroke
• Thrombocytopenia

Rationale: Femoral punctures can lead to hematoma due to arterial

bleeding at the puncture site.

• Which of the following describes the Seldinger technique?
• Open surgical vessel access
• Direct catheter placement without guidewire
• Vascular access using a needle, guidewire, and catheter
• Balloon angioplasty technique

Rationale: The Seldinger technique involves needle access, guidewire

insertion, and catheter placement. 3 / 4

• What is the primary purpose of a balloon angioplasty?
• Remove thrombus
• Dilate stenotic vessels
• Deliver chemotherapy
• Image the vasculature

Rationale: Balloon angioplasty is used to dilate narrowed vessels to

restore blood flow.

• Which of the following is a common indication for transjugular

intrahepatic portosystemic shunt (TIPS) placement?

• Pulmonary embolism
• Portal hypertension with variceal bleeding
• Stroke
• Renal artery stenosis

Rationale: TIPS is indicated for portal hypertension to reduce

pressure and prevent variceal bleeding.

• During an interventional procedure, what is the maximum

recommended radiation dose to the patient’s skin in fluoroscopy to avoid deterministic effects?

• 1 Gy
• 2 Gy
• 5 Gy
• 10 Gy
• / 4