VIRPrep

Questions

160

Mock Exam

Pass the VI Registry.
The first time.

Built by VI techs. Every question sourced from ARRT® content specs, SIR guidelines, and ACR clinical standards.

810

Questions

160

Mock Exam

Everything you need. Nothing you don't.

Other prep products give you PDFs and static flashcards. VIRPrep gives you an adaptive engine built for how the registry actually tests.

Mock Registry Exam

160 questions at exact ARRT® proportions. Timed mode runs at 3h 30m — the real exam clock. Auto-submits when time expires.

Smart Spaced Repetition

Adaptive scheduling tracks every question you've seen. Surfaces the ones you keep missing at exactly the right time.

Performance Analytics

Registry readiness score, per-category breakdown, trend chart, strengths vs. focus areas. Know exactly where you stand.

Complete Study Guide

All 5 ARRT content areas. Anticoagulation tables, contrast protocols, vascular anatomy, exam traps, clinical scenarios. All in one place.

Flashcard Deck

Active recall from every high-yield topic. Flip to reveal, mark as learned, filter by category. Works on your phone during breaks.

Question Review

After every quiz, review every question — what you got right, what you missed, and why. The explanation alone is worth the price.

Built to the exact ARRT® blueprint.

The VI Registry has 160 scored questions across 5 content areas. VIRPrep mirrors those proportions exactly — so you study what's actually tested.

Patient Care

14% of exam

Image Production

16% of exam

Vascular Diagnostic

26% of exam

Vascular Interventional

26% of exam

Nonvascular

19% of exam

How VIRPrep works.

A simple routine from your first question to exam day.

Study

Work through the study guide for all five ARRT® content areas — key values, protocols, anatomy, and the exam traps worth knowing.

Practice

Answer registry-style questions with a full explanation after each one. Spaced repetition brings back the ones you miss until they stick.

Simulate

Take a full 160-question mock at real exam proportions, timed at 3h 30m, then use your category scores to decide what to study next.

One price. Everything included.

Less than $2 a week. Less than your coffee the morning of the exam.

1-Year Access

^$99

for 1 year · one-time payment, no auto‑renewal

✓ 810 registry-aligned practice questions

✓ Full mock exam at exact ARRT® proportions

✓ Timed mock — 3h 30m auto-submit

✓ Complete study guide — all 5 content areas

✓ Spaced repetition & smart review

✓ Performance analytics & progress tracking

✓ Flashcard deck & quick reference

✓ Works on desktop, tablet, and phone

✓ Updated continuously as guidelines change

Currently in private beta — early access pricing. Launch price may increase.

Frequently asked questions.

Is VIRPrep aligned with the current ARRT® VI exam?+

Yes. Every question is mapped to the current ARRT® Vascular-Interventional Radiography content specifications. Clinical values, drug doses, and procedural guidelines are updated to reflect current standards — SIR 2019, the ACR Manual on Contrast Media, AASLD 2024, and NCRP Report 168.

How is VIRPrep different from a textbook?+

Textbooks are written for physicians and cover far more than the registry tests. VIRPrep is built specifically around what ARRT® actually asks — exam traps, clinical scenarios, the exact numbers you need to know. Active recall and spaced repetition are proven to outperform passive reading by a significant margin.

Does my progress save if I close the app?+

Yes. Your scores, bookmarks, spaced repetition data, and session history all save automatically — both locally and to our server. Pick up exactly where you left off on any device.

When does billing start?+

VIRPrep is currently in private beta. If you received an access code, you can use the app now. Full public launch with billing is coming soon. Early beta users will receive a discounted rate at launch.

What is the refund policy?+

We offer a 7-day money-back guarantee after launch. If VIRPrep isn't right for you, contact us within 7 days of purchase for a full refund — no questions asked.

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Quick Start

Mock Exam

160 questions at exact ARRT® proportions — the full registry experience

160 Qs

Build Exam

Choose categories, count, and options

Custom

Timed Mock

160 Qs · 3h 30m · exact ARRT® simulation

3h 30m

Smart Review

Spaced repetition — questions due today

Adaptive

Bookmarked

Questions you saved for later review

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Timed Mode

60 sec/question from your weakest area

10 Qs

Quick 5

Five questions from your weakest category

5 Qs

Study Guide

All five ARRT® VI content areas — concise, clinical, exam-focused

Content Areas

Build Your Exam

Choose categories, set question count, and configure your session

Question Pool

810 Questions

Available to draw from

All categories selected

Content Categories

✓

Patient Care

Contrast · Medications · Lab Values · Emergency Management

154

✓

Image Production

Fluoroscopy · DSA · Radiation Protection · ALARA

120

✓

Vascular Diagnostic

Arteriography · Venography · Access · Catheter Selection · Anatomy

199

✓

Vascular Interventional

TIPS · IVC Filters · Embolization · Stents · CDT · Ablation

177

✓

Nonvascular

Nephrostomy · Biliary · Biopsy · Drainage · Spine Procedures

160

Exam Options

Number of Questions

Up to 160 questions per exam

Show answers as you go

See explanation immediately after each answer

Include timer

60 seconds per question — auto-advances when time runs out

Category Breakdown

Approximate — questions are drawn in proportion to each category

ARRT® Mock Registry Exam

160 questions · Weighted to ARRT® proportions · Scored by category

Exam Breakdown

Category	Questions	Weight
Patient Care	22	14%
Image Production	26	16%
Vascular Diagnostic	41	26%
Vascular Interventional	41	26%
Nonvascular	30	19%
Total	160	100%

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Flashcards

Active recall from all 810 exam questions — flip each card to reveal the answer

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Quick Reference

ACR, SIR, NCRP, and textbook-verified — the facts you need to memorize

Lab Values & Procedural Thresholds

▼

Test	Normal	Threshold & Use
INR	0.8–1.2	≤2.0–3.0 low-risk / ≤1.5–1.8 high-risk (SIR 2019)
aPTT	25–35 sec	~1.5–2.5× control = therapeutic IV UFH (lab-specific)
ACT	~70–180 sec (method-specific)	Point-of-care heparin monitoring at the table; target set per procedure (e.g., 250–300 sec for carotid stenting)
Platelets	150–400 K/µL	≥20,000/μL low-risk / ≥50,000/μL high-risk (SIR 2019)
Creatinine	0.6–1.2 mg/dL	Elevated → eGFR → CIN risk assessment
eGFR	>60 mL/min	<30 or AKI = at risk → lowest diagnostic contrast dose + IV isotonic saline (ACR)
K⁺	3.5–5.0 mEq/L	Correct if abnormal — arrhythmia risk with sedation

Source: SIR consensus guidelines and ACR clinical standards · SIR Consensus Guidelines JVIR 2019

Contrast Reactions — ACR Treatment

▼

Severity	Key Signs	Treatment
Mild	Limited urticaria, flushing, nausea	Observe. Diphenhydramine 25–50mg PRN.
Moderate	Diffuse urticaria, mild bronchospasm	O₂, IV fluids, Benadryl 50mg IV. Epi IM if progressing.
Anaphylaxis	Bronchospasm, collapse, tachycardia	Epinephrine FIRST: 0.3mg IM (1:1,000) or 0.1mg IV (1:10,000)
Vasovagal	Bradycardia + hypotension	Legs up, fluids, O₂, atropine 0.6–1 mg IV. Not epinephrine.
CIN	Cr ↑ ≥0.3mg/dL in 48h	IV isotonic saline, lowest diagnostic contrast dose; hold metformin if eGFR <30 or AKI

Source: ACR Manual on Contrast Media

Medications & Reversal Agents

▼

Drug	Use & Dose	Reversal
Heparin (UFH)	Procedural anticoag. ACT monitoring.	Protamine 1mg per 100U UFH
Alteplase (tPA)	CDT 0.5–1mg/hr via catheter	FFP/cryoprecipitate (no specific reversal)
Fentanyl	Opioid — 50–100× the potency of morphine (CDC)	Naloxone 0.1–0.2 mg IV every 2–3 min, titrated (sedation reversal)
Midazolam (Versed)	Benzo — anxiolysis/amnesia	Flumazenil 0.2mg IV (max 1mg)
Epinephrine	Anaphylaxis — 0.3mg IM (1:1,000)	N/A
Atropine	Vasovagal bradycardia — 0.6–1 mg IV	N/A
Nitroglycerin	Arterial spasm — 100–200mcg IA	N/A
Methylprednisolone	Contrast premedication — 32mg PO ×2	N/A

Radiation Protection — Dose Limits (NRC & NCRP)

▼

Parameter	Limit
Occupational whole body (annual)	50 mSv/year (5 rem)
Occupational lens of eye	50 mGy/year (NCRP Commentary No. 26); U.S. regulatory limit 150 mSv/year (NRC, 10 CFR 20)
Occupational extremity	500 mSv/year
Declared pregnancy (total)	5 mSv entire pregnancy (NRC, 10 CFR 20.1208); NCRP recommends 0.5 mSv per month
Patient reporting threshold	≥5 Gy cumulative air kerma
DAP units	mGy·cm²
OSL advantage	Can be re-read; reading a TLD erases its stored signal

Source: NCRP Reports 116 & 168 · Joint Commission

Key Procedures — Access, Goals & Complications

▼

Procedure	Access	Technical Goal	Key Complication
TIPS	Right IJV → hepatic vein → portal vein (transhepatic)	PSG <12 mmHg	Hepatic encephalopathy (25–35%)
IVC Filter	Right femoral or IJV. Infrarenal below lowest renal vein.	PE prevention (cavagram first)	Filter fracture, IVC thrombosis, perforation
Nephrostomy	Posterior lower pole calyx. Prone. US + fluoro.	Decompress obstructed system	Hemorrhage (most common), urosepsis
Biliary Drain (PTCD)	Transhepatic right lobe. Prophylactic Abx mandatory.	Decompress obstructed bile duct	Biliary sepsis (most dangerous)
Vertebroplasty	Transpedicular under fluoroscopy	Pain relief in VCF	PMMA cement leak → epidural or PE
TACE	CFA → hepatic artery → tumor feeder	Tumor devascularization + local chemo	Post-embolization syndrome (expected)
Y-90	CFA → hepatic artery (after MAA shunt study)	Radiation delivery to tumor	Radiation pneumonitis if shunt >20%
Carotid Stenting (CAS)	CFA → aorta → carotid with distal EPD	Stent across stenosis with EPD deployed	Stroke/TIA from distal embolization
Tunneled HD Catheter	Right IJV preferred. Subcutaneous tunnel.	Tip in the mid right atrium (KDOQI 2019)	Fibrin sheath, infection, thrombosis
Percutaneous Gastrostomy	Air insufflation + T-fastener gastropexy	Secure tube through gastropexied stomach	Peritonitis from leak or tube dislodgement

Sources: SIR consensus guidelines · SIR Clinical Practice Guidelines · AASLD Guidelines · ACR Manual on Contrast Media · NCRP Report 168

Vascular Anatomy — Key Facts & Variants

▼

Structure	Origin / Level	Key Clinical Fact
Celiac trunk	Anterior aorta at T12–L1	Trifurcation: left gastric + splenic + common hepatic (~89%)
Replaced RHA	From SMA (10–15%)	Most common hepatic variant — must identify before TACE
Replaced LHA	From left gastric (~10%)	Second most common — runs in lesser omentum
Michels Type IX	Entire hepatic supply from SMA	No hepatic branches on celiac arteriogram — check SMA
SMA origin	Anterior aorta at L1	Passes anterior to D3 (duodenum); arc of Riolan = SMA–IMA collateral
IVC formation	L4–L5 confluence of common iliac veins	Ascends RIGHT of aorta; passes through T8 caval hiatus
Duplicated IVC	Prevalence 0.2–3%	Bilateral filters OR suprarenal filter required
Left-sided IVC	Prevalence 0.2–0.5%	Joins left renal vein → crosses anterior to aorta → right suprarenal IVC
Circumaortic LRV	Prevalence 2.4–8.7%	Two left renal veins encircle aorta — alters filter placement zone
Portal vein	SMV + splenic vein posterior to pancreatic neck at L1–L2	IMV drains into splenic vein (not portal confluence directly)
Left renal vein	Crosses anterior to aorta	Receives left gonadal + left adrenal + left phrenic veins
Right adrenal vein	3–5mm — drains directly into IVC	Most challenging AVS catheterization; right IVC posterolateral wall
Aortic arch branches	Proximal to distal	1. Brachiocephalic → 2. Left CCA → 3. Left subclavian
Vertebral arteries	From subclavian arteries bilaterally	Unite at pontomedullary junction → basilar artery; left dominant ~45%
CCA bifurcation	C3–C4 (upper thyroid cartilage)	ICA = posterior/lateral; ECA = anterior/medial; carotid body here
Anterior communicating artery	Between bilateral ACAs	Most common intracranial aneurysm site (~30–35%)
SFA → popliteal transition	Adductor (Hunter's) canal → adductor hiatus	Common SFA occlusion site due to repetitive flexion stress
Popliteal trifurcation	Lower popliteal fossa / proximal fibular head	AT → anterior; Tibioperoneal trunk → PT + peroneal
Uterine artery	Anterior division of internal iliac	'Water under bridge' — crosses superior to ureter
Artery of Adamkiewicz	Left T8–L1 intercostal/lumbar (75%)	Dominant anterior spinal feeder — TEVAR coverage → spinal ischemia
Right IPA	Right inferior phrenic artery	Most common extrahepatic HCC feeder (hepatic dome, seg VII/VIII)
Internal iliac projections	25° RAO → left IIA in profile; 25° LAO → right IIA in profile	Counterintuitive — contralateral oblique profiles each IIA

Sources: StatPearls (NBK534861, NBK459241, NBK430539) · PMC4862848 · PMC10788309 · RadioGraphics IVC variants 2014 · ASRT VIE Module Transcripts 2016 · Song et al. Radiology 2010

Patient Prep — NPO, Consent & Monitoring

▼

Topic	Key Rule	Source
NPO — Clear liquids	2 hours minimum before procedure	ASA guidelines
NPO — Light meal	6 hours minimum	ASA guidelines
NPO — Full meal	8 hours minimum	ASA guidelines
Informed consent	Must be obtained BEFORE sedation; covers risks, benefits, alternatives, right to refuse	The Joint Commission
Emergent (implied) consent	Incapacitated patient + life-threatening emergency; document absence of surrogate	Legal standard
Universal time-out	Entire team together, immediately before procedure; patient ID + procedure + site confirmed	JC Universal Protocol
Allen test normal	Normal ≤5 s; intermediate 6–10 s; abnormal >10 s after releasing the ulnar artery	Standard technique
Barbeau Type D	SpO₂ waveform lost and does not recover within 2 minutes → use an alternative access site	Barbeau et al., Am Heart J 2004
EtCO₂ normal	35–45 mmHg; flat waveform = apnea (detects 30–90s before SpO₂ drops)	AANA standards
Controlled substance waste	Two qualified staff witness AND sign; physical waste immediately; no saving	DEA 21 CFR
Lead apron inspection	Visual each use; fluoroscopic/radiographic annually; never fold — always hang	NCRP / facility policy
Metformin + contrast	Hold 48h after contrast only if eGFR <30 or AKI; no hold needed at eGFR ≥30. Resume when renal function confirmed stable	ACR guidelines (current)

Sources: ASA NPO guidelines · ACR guidelines · JC Universal Protocol · NCRP · DEA 21 CFR 1301

Pass the VI Registry.The first time.

Everything you need. Nothing you don't.

Built to the exact ARRT® blueprint.

How VIRPrep works.

One price. Everything included.

Frequently asked questions.

Lab Values & Procedural Thresholds

Contrast Reactions — ACR Treatment

Medications & Reversal Agents

Radiation Protection — Dose Limits (NRC & NCRP)

Key Procedures — Access, Goals & Complications

Vascular Anatomy — Key Facts & Variants

Patient Prep — NPO, Consent & Monitoring

Pass the VI Registry.
The first time.