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Displaying numeric blood glucose (BG) readings on point-of-care (POC) glucometers prevents critical treatment errors. Numeric displays are safer than range abbreviations for interpreting BG levels in clinical settings.

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Area of Science:

  • Clinical Chemistry
  • Medical Device Technology
  • Patient Safety

Background:

  • Blood glucose (BG) testing is a common point-of-care (POC) procedure in hospitals.
  • Adverse events indicate that POC glucometer results screens can impact treatment decisions.
  • The ACCU-CHEK Inform II glucometer's results screen configurations were previously evaluated.

Purpose of the Study:

  • To compare two different results screen configurations for the ACCU-CHEK Inform II POC glucometer.
  • To assess the impact of numeric versus range abbreviation displays on treatment decisions.
  • To identify potential risks associated with POC glucometer display formats.

Main Methods:

  • A randomized, crossover simulation study was conducted with 66 nurse participants.
  • Participants interpreted BG readings for simulated hypoglycemic patients.
  • Two scenarios were used: one with a numeric BG value (32 mg/dL) and one with a range abbreviation (RR LO).

Main Results:

  • 10.6% of participants made treatment errors when presented with an 'RR LO' reading.
  • Treatment errors occurred even in 6.7% of participants previously trained on 'RR LO' meaning.
  • No treatment errors were observed when a numeric '32 mg/dL' BG reading was displayed.

Conclusions:

  • Numeric BG readings on POC glucometers eliminate life-threatening treatment errors caused by range abbreviations.
  • Manufacturers should prioritize numeric displays in future POC glucometer development.
  • Clearer display formats enhance patient safety in POC glucose monitoring.