ADC Practice Question — Disinfection Methods

Under AS 5369:2023, who must complete the validation…

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. Under AS 5369:2023, who must complete the validation cycles with biological indicators?

A. The dental practice staff, who then ship indicators to an external laboratory
B. The technician must complete all three cycles — staff can no longer perform these cycles and ship to external labs
C. Any staff member with basic reprocessing training
D. An independent IPC auditor

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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: B

AS 5369:2023 requires PQ and microbiological PQ (MPQ) to be performed concurrently. The technician must complete all three cycles using biological indicators. Staff can no longer perform these cycles and ship indicators to an external laboratory for incubation. Validation is required annually. (ICG pp.48, 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

Should I memorise guidelines word-for-word for Disinfection Methods?

Focus on decision points — when the guideline says X vs Y. The exam tests application, not recitation.

How are Disinfection Methods questions structured in the ADC written exam?

ADC Disinfection Methods questions present as clinical vignettes requiring management decisions. The correct answer is always traceable to a guideline source.

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Under AS 5369:2023, who must complete the validation…

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