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Designing the User Interface of a Nitroglycerin Dose Titration Decision Support System: User-Centered Design Study.

Navpreet Kamboj1, Kelly Metcalfe1,2, Charlene H Chu1,3

  • 1Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Toronto, Canada.

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Summary
This summary is machine-generated.

Nurses can improve angina treatment with a new clinical decision support system (CDSS) for nitroglycerin titration. The nitro DSS prototype, designed with user feedback, enhances safety and efficacy in managing patient blood pressure.

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Area of Science:

  • Cardiovascular Nursing
  • Clinical Decision Support Systems
  • Human-Computer Interaction

Background:

  • Manual titration of intravenous nitroglycerin for angina presents challenges, including risks of hypotension or inadequate pain relief.
  • Clinical decision support systems (CDSSs) offer potential to aid nurses in nitroglycerin titration by predicting blood pressure changes.

Purpose of the Study:

  • To design a user interface for a CDSS specifically for nitroglycerin dose titration, termed the Nitroglycerin Dose Titration Decision Support System (nitro DSS).

Main Methods:

  • A user-centered design (UCD) approach was employed, starting with qualitative interviews to gather design specifications.
  • Iterative usability testing with experienced nurses in coronary care units refined the prototype through three rounds.

Main Results:

  • Four key design themes emerged: clear/consistent, vigilant, interoperable, and reliable.
  • The final nitro DSS prototype featured blood pressure prediction monitoring, side effect reporting, and safety alerts for low systolic blood pressure.
  • Nurses reported excellent usability and acceptability of the developed nitro DSS prototype.

Conclusions:

  • A UCD approach successfully facilitated nurse collaboration in developing the nitro DSS user interface.
  • The designed nitro DSS aims to support nurses' clinical decision-making during nitroglycerin titration.