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Related Experiment Video

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Reducing and Sustaining Duplicate Medical Record Creation by Usability Testing and System Redesign.

Adjhaporn Khunlertkit1, Leonard Dorissaint, Allen Chen

  • 1From the Johns Hopkins Medicine, Armstrong Institute for Patient Safety and Quality; and Johns Hopkins University, School of Medicine, and Health Information Technology, Baltimore, Maryland.

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Summary
This summary is machine-generated.

Redesigning healthcare search systems through usability testing significantly reduced duplicate medical record errors. This improved patient safety by ensuring accurate patient identification and data integrity within electronic health records.

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Area of Science:

  • Health Informatics
  • Human-Computer Interaction
  • Healthcare Systems Engineering

Background:

  • Duplicate medical record creation is a frequent and serious healthcare systems error.
  • Poor search system usability and inadequate user training contribute to this problem.

Purpose of the Study:

  • To evaluate the effectiveness of a redesigned search system in reducing duplicate medical record creation.
  • To assess the impact of usability testing on improving healthcare system error rates.

Main Methods:

  • Two phases of scenario-based usability testing were conducted with patient registrars.
  • The existing system was evaluated in Phase 1, leading to redesigns, followed by testing of the new system in Phase 2.
  • Monthly potential duplicate medical record rates were compared pre- and post-implementation.

Main Results:

  • The original system failed to handle misspellings, leading to duplicate records; only 69% of registrars could find complicated names.
  • The redesigned system captured correct patients despite misspellings, though searches yielded more potential matches.
  • Potential monthly duplicate medical record rates decreased by 38% (from 4% to 2.3%) post-implementation and remained stable for two years.

Conclusions:

  • Usability testing effectively identified issues and guided system redesign for a more user-friendly interface.
  • System improvements significantly reduced the potential for medical record duplication, enhancing patient safety.
  • Establishing higher usability standards proactively prevents patient risks associated with medical record errors.