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Laboratory Medicine

Test catalogue

Glucose, Fasting

Test Name

Glucose, Fasting

Gold Tube Specimen Type / Requirements

Container Type = Gold (SST)

Minimum Volume = 1ml Serum

Tube must fill to at least ½ or greater of its vacuum capacity

Specimen Handling

Collection Instructions: Serum or plasma (heparin), free from hemolysis, collected with or without gel separator. If fasting specimen is requested, patient must be fasting for at least 8 hours

Write your initials, date and time of collection on the collection label.

Stability: Stable at room temperature for 8 hours and 3 days refrigerated at 2-8°C.

Transportation: Transport at room temperature ASAP.

Laboratory Staff Instructions: Spin sample if collection time and time sample gets to the core lab exceeds 2hrs. Separate serum after clotting or plasma from cells immediately to reduce loss of glucose through in vitro glycolysis.

Sample Rejection Criteria: Grossly hemolyzed samples, Unlabeled or Not Sufficient Quantity Samples will be rejected

Required Documentation

Turnaround Time (TAT)

45 Mins STAT/Trauma, 2 hours routine

Test Utilization

Reference Value

4.0 – 6.0 mmol/L

0 – 1W 2.5 – 6.0 mmol/LL

Test Code




Testing Location


Other Information

Last Updated: June 06, 2019