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目的探讨听诊器的污染情况及寻找有效的消毒方法。方法对我院９４个听诊器进行微生物监测并采用１％醋酸洗必泰乙醇溶液擦拭消毒。结果有９３个听诊器被微生物污染，占被检听诊器的９８．９４％。所污染微生物依次为枯草芽胞杆菌１４７７株，占４７．３４％；微球菌属６１５株，占１９．７１％；葡萄球菌属３９３株，占１２．６０％；不动杆菌属３２３株，占１０．３５％；链球菌属３０４株，占９．７４％及真菌８株，占０．２６％。我们采用１％醋酸洗必泰乙醇溶液消毒听诊器后，微生物数量明显减少，二者呈显著差别（Ｐ＜０．０５）。结论听诊器污染严重，用１％的醋酸洗必泰乙醇溶液消毒听诊器是简便、快捷和有效的方法
Objective To investigate the situation of the stethoscope and to find an effective disinfection method. Methods Ninety-four stethoscopes in our hospital were monitored for microbes and disinfected with 1% ethanolic chlorhexidine acetate solution. As a result, 93 stethoscopes were contaminated with microorganisms, accounting for 98.94% of the stethoscopes examined. The order of the contaminated microorganisms was Bacillus subtilis 1477, accounting for 47.34%, Micrococcus 615, accounting for 19.71%, Staphylococcus 393, accounting for 12.60%, Acinetobacter 323, accounting for 10 .35%; Streptococcus 304, accounting for 9.74% and 8 fungi, accounting for 0.26%. After disinfecting the stethoscope with 1% chlorhexidine acetate solution, the number of microbes decreased significantly (P <0.05). Conclusion The stethoscope is seriously polluted. It is a simple, quick and effective method to disinfect the stethoscope with 1% chlorhexidine acetate solution