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Influence of Infusion Methods on Therapeutic Drug Monitoring in Pediatric Patients

The purpose of this article is to emphasize the importance of infusion method on therapeutic drug monitoring in pediatric patients. Although effective serum concentrations are anticipated after intravenous infusion of drugs, studies with chloramphenicol and tobramycin have shown that the infusion method can have a profound influence on peak serum concentration and time to achieve peak concentration during therapy. Factors including infusion rate, injection site, volume of drug and fluid to be infused in the tubing, and type of infusion system should be considered for accurate drug delivery. Specific guidelines for drug infusions should be available at each institution. Since serum concentration predictions are based on the dose infused and infusion time, meaningful therapeutic monitoring data can be generated only with the understanding of the influence of infusion method on serum concentration-time profile of drugs.