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The wash-in effect and its significance for mass casualty decontamination
Thomas James1, Lydia Izon-Cooper1, Samuel Collins1,2
1Radiation, Chemical and Environmental Hazards, UK Health Security Agency, Chilton, UK.
Abstract:
Decontamination of skin by washing may increase dermal absorption, a phenomenon known as the wash-in effect. The wash-in effect is frequently discussed in studies investigating casualty decontamination where potentially life-saving interventions may enhance the dermal penetration of toxic chemicals, leading to an increase in incidence of morbidity and rates of mortality. However, the wash-in effect is seldom investigated within the context of mass casualty decontamination and real-life consequences are therefore poorly understood. This paper reviews the existing literature on the wash-in effect to highlight the proposed mechanisms for enhanced absorption and evaluate the wash-in effect within the context of mass casualty chemical decontamination.
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