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KMID : 0869120090110010092
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기초간호자연과학회지
2009 Volume.11 No. 1 p.92 ~ p.98
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Colony Counts by Different Disinfecting Processes and Operating Time for Humidifiers in an Intensive Care Unit
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Park Soon-Mi
Jeong Ihn-Sook
Chang Chul-Hun L.
Lee Young-Soon
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Abstract
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Purpose: This study was aimed to investigate the colony counts by different disinfecting processes and duration of the operation for humidifiers in an intensive care unit (ICU) in Busan.
Method: The four steps of disinfecting process were taken with four different humidifiers according to the use of disinfectant (1:100 Deconex?? 50FF/nothing) and refilling water (tap water/distilled water). First, the colony counts using water sample from wick was conducted at 0 hr, 24 hr, and 48 hr respectively after turning on the humidifiers. Next, the colony counts using waterdrop from the outlet was done at 0 hr, 24 hr, 48 hr, and 72 hr respectively after turning on the humidifiers.
Result: No colony was counted after disinfecting with 1:100 Deconex?? 50FF until 72 hr after turning on the humidifiers. However, without disinfecting with Deconex?? 50FF, the colony count was increased in the humidifiers from 24 hr after turning on the humidifiers. The result was the same regardless of the refilling water.
Conclusion: According to the results, the study found that disinfection of humidifiers in the ICUs with 1:100 Deconex?? 50FF every 72 hr is effective to remove general bacteria.
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KEYWORD
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Intensive care units, Humidity, Disinfection
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