荧光标记法用于观察医护人员个人防护用品脱摘时的污染

 目的 评价荧光标记法对改善医护人员个人防护用品(PPE)脱摘时污染的效果。方法 在成都市8所三级医院招募69名医护人员进行PPE穿脱培训,并分别在培训前、培训后当日、培训后半个月及培训后一个月采用紫外线-荧光标记法考核PPE脱摘效果,记录脱摘后内层衣物及皮肤表面残留荧光污染点数及部位,比较污染点数及污染率的变化情况。结果 与培训前相比,所有医护人员在培训后当日、培训后半个月及培训后一个月脱摘PPE后残留荧光污染点数均减少(Z值分别为5.306、5.813、6.641,均P<0.001),其中女性、护士、初级与中级职称医护人员在培训后污染率较培训前明显下降(均P<0.05)。随时间推移,3次考核医务人员荧光污染点数逐渐减少(均P<0.05)。工作鞋在PPE脱摘过程中最容易受到污染。结论 医护人员在脱摘PPE过程中容易受到污染,经过实操培训可以降低脱摘PPE后污染率,改善污染情况,荧光标记法可以用于观察PPE脱摘过程中的污染情况。

Fluorescent labeling method used to observe the contamination of personal protective equipment of health care workers during removing of personal protective equipment

Objective To evaluate the effect of fluorescent labeling method on improving the contamination of personal protective equipment (PPE) of health care workers (HCWs) during removing of PPE.Methods 69 HCWs were recruited from 8 tertiary hospitals in Chengdu City for training on PPE wearing and taking off, and the effects of PPE removing were assessed by ultraviolet fluorescent labeling method before training, on the day after training, half a month after training and one month after training, the number and sites of residual fluorescent contamination on inner clothing and skin surface after removing PPE were recorded, changes in contamination points and contamination rate were compared.Results Compared with before training, the number of residual fluorescent contamination points of all HCWs after removing PPE on the day after training, half a month after training and one month after training decreased (Z values were 5.306, 5.813 and 6.641 respectively, all P < 0.001).Contamination rates of female, nurse, HCWs with primary-and medium-grade professional title after training decreased significantly compared with before training (all P < 0.05).The number of HCWs'fluorescent contamination points obtained in three assessments gradually decreased over time (all P < 0.05).Work shoes are most likely to be contaminated du-ring PPE removing.Conclusion HCWs are easy to be contaminated in the process of removing PPE, contamination rate can be reduced and contamination situation can be improved after practical training, fluorescent labeling can be used to observe contamination situation in the process of PPE removing.