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Acad Emerg Med. 2002 Nov;9(11):1168-75.

The effect of computer-assisted prescription writing on emergency department prescription errors.

Author information

  • 1Department of Emergency Medicine, Oregon Health & Science University, Portland, OR 97201, USA. bizovik@ohsu.edu

Abstract

OBJECTIVE:

To determine whether computer-assisted prescription writing reduces the frequency of prescription errors in the emergency department (ED).

METHODS:

A pre-post retrospective analysis was used to compare errors between handwritten (HW) and computer-assisted (CA) ED prescriptions. Prescriptions were reviewed for pharmacist clarifications. A clarification was defined as an error if missing information, incorrect information, incorrect dose, non-formulary medication, or illegibility was the reason for clarification. The HW and CA error rates were compared using odds ratios (ORs) with 95% confidence intervals (95% CIs).

RESULTS:

During the pre-intervention period, there were 7,036 patient visits with 2,326 HW ED prescriptions filled for 1,459 patients. There were 91 clarifications, with a rate of 3.9%. There were 54 HW errors, for an error rate of 2.3%. During the post-intervention period, there were 7,845 patient visits with 1,594 CA prescriptions filled for 1,056 patients. There were 13 clarifications, with a clarification rate of 0.8%, and 11 errors, for a CA error rate of 0.7%. The CA prescriptions were substantially less likely to contain an error [OR 0.31 (95% CI = 0.10 to 0.36)] or to require pharmacist clarification [OR 0.19 (95% CI = 0.10 to 0.36)] than were the HW prescriptions.

CONCLUSIONS:

Computer-assisted prescriptions were more than three times less likely to contain errors and five times less likely to require pharmacist clarification than handwritten prescriptions.

PMID:
12414466
[PubMed - indexed for MEDLINE]
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