AAMI Certified Associate In Biomedical Technology (CABT) Practice Exam

Air is typically stored in which color-coded cylinders?

Blue Yellow Black White

Correct Answer:

Yellow

Explanation:

Color coding on compressed gas cylinders is a safety cue that helps healthcare workers identify the content quickly and prevent mix-ups. In this system, air is stored in yellow cylinders, distinguishing it from oxygen, which is typically green, and from other gases with their own colors. This makes sense because air used for patient ventilation is a non-oxygen-enriched supply, and having a distinct color minimizes the chance of accidentally delivering the wrong gas. Always confirm with the cylinder label and the facility’s standard, since color schemes can vary by country or organization.

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