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    The Decontamination of a Patient Room Using UV Light in a Long-Term Care Facility

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    azu_etd_mr_2015_0220_sip1_m.pdf
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    Author
    Peterson, Alexandra Deann
    Issue Date
    2015
    Advisor
    Gerba, Charles
    
    Metadata
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    Publisher
    The University of Arizona.
    Rights
    Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Abstract
    The goal of this study was to assess the effectiveness of a new portable ultraviolet (UV) light system for disinfection of patient rooms in a long-term care facility (LTC). The Clorox Healthcareᵀᴹ Optimum-UVᵀᴹ system was placed in patient rooms in an LTC to determine the UV dose required to achieve a 99.9% (3-log) reduction of various nosocomial organisms (vancomycin-resistant enterococci, methicillin-resistant Staphylococcus aureus, Clostridium difficile, MS-2, and murine norovirus) on contaminated Formica and stainless steel coupons. All of the organisms and fomites achieved high log reductions. Additionally, samples were taken from high-touch areas located throughout the room and bathroom for naturally occurring bacteria. The naturally occurring bacteria surviving the UV light treatment were isolated from fomites in the patient's room and tested in the laboratory for their resistance to UV light. Laboratory studies using a collimated beam indicated that a UV exposure of 407,072 uW*sec/cm² was required for a 99.9% reduction. The use of the UV device in the patient's room is highly effective when surfaces are within 5 feet of the device for at least 5 minutes and demonstrates a new technology that can be useful in hospitals and LTCs to reduce the incidence of healthcare-associated infections.
    Type
    text
    Electronic Thesis
    Degree Name
    B.S.
    Degree Level
    bachelors
    Degree Program
    Honors College
    Microbiology
    Degree Grantor
    University of Arizona
    Collections
    Honors Theses

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