Color change observed at both ends simultaneously in a carbon dioxide absorbent canister

Cynthia M. Wong, Robert G. Loeb, Matthew B. Wecksell

Research output: Contribution to journalArticlepeer-review

Abstract

We report the case of a canister of Medisorb EF® (CareFusion) absorbent which was found to have a simultaneous color change at both ends of the absorbent canister. It is likely that the absorbent had partially dried overnight, which caused the color change at the bottom, as well as having been exhausted from the top downwards. Desiccation of absorbents is due to retrograde flow of anhydrous fresh gas through the canister, which can happen when fresh gas is left flowing while the machine is not in use. Replacing the absorbent is recommended if the hydrous state is uncertain.

Original languageEnglish (US)
Pages (from-to)41-44
Number of pages4
JournalMiddle East Journal of Anesthesiology
Volume27
Issue number1
StatePublished - Feb 2020
Externally publishedYes

ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine

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