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Pharmacist monitoring of parenteral nutrition: clinical and cost effectiveness.

The effect of pharmacist involvement in total parenteral nutrient (TPN) therapy on patient outcome and cost of therapy was studied. Data from 26 patients who received standard TPN solutions without pharmacist monitoring (Group 1) were compared with those from 26 patients whose TPN therapy was individualized (by use of a minicomputer) and monitored by a pharmacist (Group 2). Six patients from each group who were 35 days of age or younger and who received TPN as the only caloric source for 8 to 20 days were compared for clinical response. Mean duration of TPN therapy increased form 12.3 +/- 9 days for Group 1 to 14.8 +/- 12 days for Group 2, and the TPN use rate for Group 2 was 31% above that for group 1. The mean daily charge for TPN was greater for Group 1 ($72.00) than for Group 2 ($50.18). The pharmacy's mean cost per course of TPN for Group 2 was $44.10 less than that for Group 1. The mean weight gain in Group 1 was significantly less (4 g/day) than that in Group 2 (17 g/day) (p less than 0.05) (for the six patients per group compared). Pharmacist monitoring of TPN reduced the pharmacy's costs and patient charges for TPN and improved the patients' clinical responses to TPN.