ADC Practice Question — Key IPC Terminology

What standard does AS 5369 reference for air removal and steam penetration tests for small steam sterilisers?

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 Michael Chen's practice has a steam steriliser that processes both packaged and non-packaged reusable medical devices (RMDs). The dental nurse Jake is reviewing the steriliser capabilities and conducting quality control testing. During today's Bowie-Dick type test, the chemical indicator showed non-uniform colour change with some residual original colour remaining. What standard does AS 5369 reference for air removal and steam penetration tests for small steam sterilisers?

A. ISO 11140-5:2021
B. ISO 11140-6:2022
C. ISO 17665-1:2006
D. ISO 14937:2009

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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 cites ISO 11140-6:2022 Sterilization of health care products – Chemical indicators – Part 6: Type 2 indicators and process challenge devices for use in performance testing of small steam sterilizers (ICG p.49)

Source: ICG Section 9: Steam steriliser performance tests

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How do I approach an unfamiliar Key IPC Terminology vignette?

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

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