Alberta Precision Laboratories

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Organization:

Alberta Precision Laboratories

Message Alert:

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Test Name/Synonym:

Glucose, Blood
Glucose, Fasting - Calgary Zone (CLS)

Test Code:

FASTING: GLUF (PROMPT: ENTER HOURS FASTING)
RANDOM: GLU

Primary Container:

Lithium Heparin PST Gel (Light Green)

Specimen Collection Requirements:

One 3 mL or 4.5 mL light green (mint) top PST tube. Gold top SST tube also acceptable.

0.2 mL plasma or serum

Calgary Zone: Microcollection Minimum Whole Blood Volumes.

Fasting Glucose requires a fast of at least 8 hours, but not more than 16 hours.

Calgary Zone Staff:
For fasting glucose, if patient is not fasting (or has not been fasting for 8 hours):

PSC and Outpatients: order GLU and collect the specimen. Enter hours fasting into the LIS. Note: this does not apply to Glucose Tolerance Test, in which a fasting specimen is required.
Inpatients: consult with nursing unit.

Processing:

Record time of collection on requisition and on specimen tube.

MUST be centrifuged within 2 hours of collection to ensure accurate results.

Testing Schedule:

Test performed on a daily basis.

Reference Interval:

Fasting

Less than 30 days	2.5 - 5.5 mmol/L
30 days – 150 years	3.3 - 6.0 mmol/L

Random

Less than 30 days	2.5 - 11.0 mmol/L
30 days – 150 years	3.3 - 11.0 mmol/L

Critical Value:

See critical values.

Testing Area:

Chemistry

Performing Site:

Chemistry-All Sites
Rural: CRL

Additional Test Information:

For Diabetes Clinical Practice Guidelines, please see Canadian Diabetes Assn. C.P.G.