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P G Nightingale a Wolfson Computer Laboratory, Department of
Medicine, University of Birmingham, Queen Elizabeth Medical Centre,
Birmingham B15 2TH, b Department of Nephrology,
Queen Elizabeth Hospital, University Hospital Birmingham NHS Trust,
Birmingham B15 2TH
Correspondence to: P G Nightingale P.G.Nightingale{at}bham.ac.uk
Ojectives::
To implement and assess a rules based
computerised prescribing system with the aim of improving the safety of
prescriptions and the administration of drugs.
Design::
Analysis of performance of computerised
system plus questionnaire survey of users.
Setting::
64 bed renal unit in a teaching hospital.
Intervention::
Introduction of the system into routine
clinical use.
Main outcome measures::
Number of attempted
prescriptions cancelled by the system; proportion of warning messages
overridden; users' comparisons of the system with conventional procedures.
Results::
Between October 1998 and August 1999 the
system cancelled 58 (0.07%) out of 87 789 prescriptions on the
grounds of clinical safety. In addition, 427 (57%) attempted
prescriptions generating high level warnings and 1257 (8%) generating
low level warnings were not completed. In a user survey 82% (31/38) of
doctors and nurses considered the system to be an improvement on
conventional procedures.
Conclusions::
The system has contributed to safety and
patient care. All prescriptions are complete and legible, and
transcription errors have been eliminated. The system assists
clinicians when they are writing a prescription by making available
information on patients. The system supports clinical decision making
and has been well received by doctors, nurses, and pharmacists.
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