Glucose, fasting
- Test Name:
- Glucose, fasting
- Testing Prerequisites:
-
Patient must fast a minimum of 8 hours
Calgary Zone laboratory staff: If patient is not fasting (or has not been fasting for 8 hours), order Glucose, random and collect the specimen. Note: This does not apply to Glucose Tolerance, 2 hours test, in which a fasting specimen is required.
- Patient Instructions:
- Glucose and Lipid Tests
- Collection Device/Tube Type:
-
1. EDM Base Lab: 5 mL blood - GOLD SST (gel)
2. CGY DSC: 4.5 mL blood - MINT LIHEP PST (gel)
3. NOTE: The preferred tube type at each testing site is acceptable at the alternate site
- Collection Instructions:
- • Record fasting status on the requisition
- Submission Requirements:
-
1 mL serum or lithium heparin plasma
- Handling/Storage Comments:
- Centrifuge within 30 minutes of collection
- Frequency of Testing:
-
Daily
- Reference Range:
-
Age
Glucose (mmol/L)
0 to < 30 days
2.5 – 5.5
≥ 30 days
3.3 – 6.0
- Critical Values:
-
- Comments:
- For clinical interpretation, see Canadian Diabetes Association Clinical Practice Guidelines
- Last Reviewed:
- 05 May 2023
