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Related Experiment Video

Updated: Jun 9, 2026

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
10:38

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Published on: July 16, 2015

Errors and electronic prescribing: a controlled laboratory study to examine task complexity and interruption effects.

Farah Magrabi1, Simon Y W Li, Richard O Day

  • 1Australian Institute of Health Innovation, University of New South Wales, Sydney, Australia. f.magrabi@unsw.edu.au

Journal of the American Medical Informatics Association : JAMIA
|September 8, 2010
PubMed
Summary
This summary is machine-generated.

Computerized provider order entry (CPOE) systems showed robustness to interruptions, with most errors being simple slips. Complex tasks, however, significantly increased completion time and resumption lag after interruptions.

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Area of Science:

  • Health Informatics
  • Human-Computer Interaction
  • Patient Safety

Background:

  • Computerized provider order entry (CPOE) systems are widely adopted in healthcare.
  • Understanding the impact of interruptions and task complexity on CPOE usability is crucial for patient safety.

Purpose of the Study:

  • To investigate how interruptions and task complexity affect error rates in CPOE systems.
  • To classify the types of prescribing errors encountered during CPOE use.

Main Methods:

  • A within-subject design was used with 32 hospital doctors.
  • Participants completed prescribing tasks of varying complexity, some of which were interrupted.
  • Error rates, task completion times, and resumption lag were measured.

Main Results:

  • No significant impact of interruptions on prescribing error rates or task completion time was detected.
  • Complex tasks took significantly longer to complete than simple tasks.
  • Interrupted complex tasks had a significantly longer resumption lag compared to simple tasks.

Conclusions:

  • Most electronic prescribing errors were characterized as slips in system use.
  • CPOE systems demonstrated resilience to interruptions, potentially due to user interface cues aiding task resumption.
  • Further research is needed to definitively rule out interruption effects on CPOE error rates.