ADC Practice Question — Disinfection Methods

How many consecutive cycles must be run with…

Infection control in the ADC exam tests decision-making around exposure incidents, instrument classification, and decontamination protocols. This exam-level vignette tests your ability to work through clinical details and arrive at the correct management.

Dr Park's practice has purchased a new Type B steam steriliser to replace their aging unit. The steriliser service technician is scheduled to perform initial validation. The practice manager wants to understand the validation process and asks Dr Park about biological indicator requirements. How many consecutive cycles must be run with biological indicators during validation?

A. One cycle with multiple BIs
B. Two cycles in triplicate
C. Three consecutive cycles with test packs in triplicate, plus one unsterilised positive control
D. Five cycles with one BI each

ADC revision is a must, hence Reviz is a must

The only ADC prep platform where every answer is traced to the guideline source.

No invented explanations. No guesswork content. Every question mapped to Therapeutic Guidelines, Odell's, IADT, and more — so you study what the exam actually tests.

7,000+

Practice questions

All 4

ADC papers covered

Every

Answer cited

🤖

Remy — your AI tutor on WhatsAppRemy figures out what you're getting wrong and keeps hitting those topics until you stop getting them wrong. Like a tutor who remembers every mistake you've ever made.

🔄

You won't forget what you studiedGot a question wrong last week? Remy brings it back — right when you're about to forget it. The more you get right, the less it repeats. The stuff you struggle with keeps coming back until it sticks.

🎯

Know exactly where you're weakSee your score for every topic — Antimicrobials, Trauma, Anaesthesia, all of them. No more guessing what to study next. Remy builds your daily quiz from the gaps.

📱

Study on WhatsApp, review on the webYour daily quiz arrives right on WhatsApp — no app to download, no website to remember. Open WhatsApp, answer questions, done. Check detailed progress anytime on the web dashboard.

📖

Don't trust the answer? Look it up.Every explanation tells you the book, the edition, and the page number. If something doesn't feel right, you can verify it yourself in 30 seconds. No other platform does this.

⏰

Daily quizzes, your time, your timezoneRemy sends questions at the time you pick, in your timezone. You don't have to remember to study — Remy shows up every day. Consistency becomes automatic.

🔥 The Remy Challenge

Score high, pay less.

Think you already know your stuff? The Remy Challenge: 15 questions, one attempt — 13 timed and marked, plus 2 interactive finishers. Your score sets your discount — top scores take 50% off any plan, strong scores 30%, and every challenger leaves with at least 20%, locked for 72 hours.

Take the Remy Challenge

✅ No signup needed

Try Reviz on WhatsApp.

Message Remy and get one cited clinical question every morning — free until the day you sit. No card details, no forms, no app to download. Just open WhatsApp and start practising.

Message Remy on WhatsApp

Sources cited

Therapeutic Guidelines v4 Odell's 3rd & 4th Ed IADT 2020 Code of Conduct CMS (Evans) Infection Control + more

Show the answer and cited explanation

Correct answer: C

Validation requires at least two BIs per small steriliser chamber, placed at the cold spot (typically bottom of chamber). Test packs are prepared in triplicate for three consecutive cycles, plus one unsterilised positive control. All are incubated at 55-56°C for 24-48 hours. (ICG p.57)

Source: ICG Section D: Biological Indicators & Validation

Remy's study tip — The differentiator is usually the Spaulding classification level or the step order in a protocol.

Exam preparation FAQ

How should I prepare for Infection Control in the ADC exam?

Build competence across all topics. The exam tests application of guidelines to clinical scenarios, not memorisation.

How do I approach an unfamiliar Disinfection Methods vignette?

Extract key clinical data from the stem before reading options. There are usually 3–4 critical variables that determine the correct answer.

Every answer, traced to the source.

Remy — the AI tutor inside Reviz — drills you on 7,000+ ADC-style cited questions with spaced repetition, on WhatsApp and the web.

Start with 10 free questions

How many consecutive cycles must be run with…

The only ADC prep platform where every answer is traced to the guideline source.

Score high, pay less.

Try Reviz on WhatsApp.

Exam preparation FAQ

More Disinfection Methods questions

Every answer, traced to the source.

You're on a roll.