For students and faculty instructors in nursing and laboratory programs, glucose critical values for adults (17 years old and above) have changed.

What's happening?

The Student Practice team is informing students and faculty instructors in nursing and laboratory programs that as of March 13, 2018, Glucose Critical Values for adults (17 years old and above) have changed to the following:

Old Critical Value

New Critical Value

 Less than 2.0 mmol/L

Less than 2.8 mmol/L

Greater than 28 mmol/L

Greater than 30 mmol/L 


  • This change does not apply to pediatrics (0-17 years less a day)
  • Laboratory Medicine and Pathology will continue to phone critical results to the patient care provider and document the call.
  • Glucose meters will flag critical results at the new values.

Why is this important?

  • According to the Canadian Diabetes Guidelines  (2013), a blood glucose level <2.8 mmol/L may indicate severe hypoglycemia, requiring treatment with 20g of carbohydrate if alert (instead of the usual 15g dose) and a potential change in level of consciousness.
  • Students and faculty instructors should follow Fraser Health’s Adult Hypoglycemia Protocol, which can be accessed via FH Pulse when they are on Fraser Health sites.
  • The high level glucose critical value has been changed to align with the rest of British Columbia.

How will these impact students and faculty instructors?

Students and faculty instructors who are completing student placements in Fraser Health are expected to follow this practice change to ensure that patients, clients, and residents continue to receive safe and quality care.


Please contact the Student Practice Team at

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