10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
The RTVI exam has 210 questions and runs 3 hours 30 minutes.
These 10 free RTVI questions are organized by exam domain, so you can see how each part of the Registered Technologist - Vascular-Interventional Radiography blueprint is tested. Reveal the answer and explanation under each question.
During a biopsy under fentanyl and midazolam sedation, an adult stops responding to verbal commands. A pulse is present. Respirations fall to 5/min with minimal chest movement, and end-tidal CO2 rises from 38 to 61 mmHg. SpO2 remains 98% on supplemental oxygen. The operator has paused and help has been summoned. Which intervention takes priority while reversal medication is being prepared?
Correct answer: A - Support the airway and assist ventilation
Preprocedure screening for pelvic angiography identifies a shellfish allergy. The patient has previously received iodinated contrast and recalls brief warmth and a metallic taste, without hives, swelling, breathing difficulty, or hypotension. Renal function is stable, and no other preparation issue is identified. Under ACR guidance, what does this history warrant?
Correct answer: D - Proceeding without allergy premedication based on this history
Forty minutes after femoral arterial sheath removal, a patient develops deep flank pain and becomes pale. Blood pressure falls from 132/76 to 84/50 mmHg, and pulse rises from 78 to 122/min. The groin is soft, the dressing is dry, and pedal Doppler signals remain present. What complication best explains the deterioration despite the unremarkable puncture site?
Correct answer: C - Retroperitoneal hemorrhage from the access site
A lower-extremity subtraction run has adequate arterial opacification, but each bone edge has a matching bright-dark double contour. Review shows a small, uniform lateral displacement between the precontrast mask and the contrast images; the limb did not rotate or change shape. The operator wants to salvage the recorded run. Select the postprocessing adjustment that directly addresses the defect.
Correct answer: D - Pixel-shift the mask into alignment with the contrast images
A power injector is set to 6 mL/s with a 600-psi pressure limit. The angiographic catheter and extension tubing are each rated to 1,200 psi, but the connecting stopcock is rated to 300 psi. All three components permit the ordered flow rate. Before the injection is armed, which correction is required?
Correct answer: D - Reduce the pressure limit to 300 psi
An implanted chest port accepts saline easily but yields no blood return. During fluoroscopic evaluation, contrast exits the catheter tip, tracks backward along the outside of the catheter, and enters the vein several centimeters proximal to the tip. The catheter is intact. What accounts for this injection pattern?
Correct answer: C - A fibrin sheath surrounding the distal catheter
Calibrated carotid angiography shows a 2.0-mm residual lumen at an internal carotid stenosis. The normal distal internal carotid artery measures 5.0 mm, and the common carotid artery measures 8.0 mm. There is no distal internal carotid collapse. Using the NASCET diameter method, how should the stenosis be reported?
Correct answer: B - 60% stenosis, classified as moderate
The operator has crossed a malignant common bile duct obstruction and is placing an internal/external biliary drainage catheter. Which final configuration provides the intended drainage route while avoiding leakage through misplaced side holes?
Correct answer: B - The tip is in the duodenum, with side holes on both sides of the obstruction, all confined to ducts or bowel
For TIPS placement to treat recurrent variceal bleeding, the operator specifies a direct portal-to-IVC pressure-gradient target below 12 mmHg. Before shunt creation, portal pressure is 28 mmHg and IVC pressure is 8 mmHg. After placement, portal pressure is 25 mmHg and IVC pressure is 15 mmHg. All measurements use the same reference level and respiratory phase. Which conclusion belongs in the procedural record?
Correct answer: A - The final gradient is 10 mmHg; the specified target is met
After device passage during intracranial thrombectomy, a previously patent arterial segment shows a thin linear flap separating two contrast-filled channels. Downstream filling has decreased, but no contrast extravasation is seen. How should this new angiographic abnormality be identified?
Correct answer: C - An iatrogenic arterial dissection
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