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  Vol. 251 No. 16, April 27, 1984 TABLE OF CONTENTS
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Intravenous tubing with burettes can be safely changed at 48-hour intervals

H. F. Gorbea, D. R. Snydman, A. Delaney, J. Stockman and W. J. Martin

No studies of safety in changing intravenous systems containing in-line burettes at 48 hours in an intensive care setting have been performed. Patients entering a surgical intensive care unit were alternatively assigned to have any line with an in-line burette changed at either 24-hour (64 patients) or 48-hour (59 patients) intervals. Daily quantitative cultures with a 2-mL aliquot of burette fluid were obtained. Contaminated burette fluid was detected in nine of 452 (2.0%; 95% confidence interval, 0.7% to 3.3%) samples from 24-hour interval burettes and in nine of 224 (4.0%; 95% confidence interval, 1.4% to 6.6%) samples from 48-hour interval burettes. Bacterial contamination of burette fluid with ten or more colonies per milliliter occurred in only five (1.1%) cultures from patients in the 24-hour interval group compared with only two cultures (0.9%) in the 48-hour group. None of the contaminated burette fluids was associated with primary bacteremia. Change of in-line burettes in intensive care at 48-hour intervals is safe and should result in substantial cost savings.





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