注射器配制药液后有效使用时间的实验研究

 目的确定注射器配制药液后的有效使用时间。方法840具无菌注射器随机分成2组，分别配制非抗生素药液与抗生素药液，每隔1h采样培养做微生物学鉴定。结果配制非抗生素药液的注射器，4h内无细菌生长，7h内样本污染率达17.38％；配制抗生类药液的注射器，5h内无细菌生长，7h内样本污染率达3.57％。结论注射器有效使用时间应在4h以内。

Effective storage life of unsealed syringes used for dispensing solutions

Objcctive To determine the storage life and applicability of unsealed syringes.Methods 840 syringes used in 12 clinical departments of this hospital were divided into two groups:one for dispensing antibiotic solutions and the other for non-antibiotic solutions.Samples from the unsealed syringes were collected,cultured and evaluated every one hour for identification of bacteria.Results Negative bacterial cultures were obtained during the initial 4 and 5 hours in the groups of dispensing non-antibiotic and antibiotic solutions,respectively;and the total contamination rates were 17 38% and 3.57% for the groups of dispensing non-antibiotic and antibiotic solutions,respectively,7 hours after unsealing.Conclusions Syringes should be used within 4 hours after unsealing.