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In Vitro Thrombosis Test for Ventricular Assist Devices
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The distracted intravenous access (DIVA) test.

Samantha Smith1, Victoria Tallentire, Morwenna Wood

  • 1Centre for Medical Education, University of Edinburgh, UK. sam.smith@ed.ac.uk

The Clinical Teacher
|September 22, 2012
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This study developed a distracted intravenous access (DIVA) test to assess peripheral venous cannulation automaticity in medical students. Experts significantly outperformed novices, validating the test as a useful, enjoyable formative assessment tool.

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Area of Science:

  • Medical Education
  • Skill Assessment
  • Procedural Competency

Background:

  • Medical graduates require proficiency in practical procedures like peripheral venous cannulation.
  • Current primary medical training often prioritizes safety over technical skill and effectiveness.
  • A need exists for assessing the automaticity of peripheral venous cannulation skill in medical students.

Purpose of the Study:

  • To develop and evaluate a test measuring automaticity in peripheral venous cannulation.
  • To create a tool suitable for assessing medical student proficiency.
  • To assess the construct validity and acceptability of the developed test.

Main Methods:

  • The Distracted Intravenous Access (DIVA) test was created, assessing cannulation, arithmetic, and completion speed.
  • Participants were categorized into novices (medical students), intermediates (FY1 doctors), and experts (consultants/trainees).
  • A questionnaire was administered post-test to gather participant feedback.

Main Results:

  • Significant differences in mean scores were observed across groups: novices (47.7%), intermediates (73.4%), and experts (84.4%).
  • The DIVA test was found to be enjoyable (78%) and useful (76%) by most participants.
  • While students found the test fairer (78%) than doctors (38%), this difference was not statistically significant.

Conclusions:

  • The DIVA test offers a feasible method for assessing peripheral venous cannulation automaticity in medical students.
  • Evidence supports the test's construct validity and acceptability.
  • The authors recommend the DIVA test as a formative assessment for final-year medical students to gauge distraction-based proficiency.