Glucose - Blood

Source

Blood

Mnemonic

GLUF
GLU2H
GLU
GLUR for random glucose RRL specimens only

Specimen Requirements

1 x 5 mL light green (mint) top PST tube. Gold top SST tube is also acceptable.

0.2 mL heparinized plasma or serum

Minimum Blood Volume for Patients less than 45 kg (100 lb) Including Neonates and Pediatrics

For Fasting Glucose: Patients are required to fast for 10 hours, but not longer than 16 hours.

Specimen Handling

RECORD time of collection and hours p.c. on requisition and on specimen tube.

Additional Information

For Diabetes Clinical Practice Guidelines, please see www.diabetes.ca/cpg2003

Glucose can also be performed on fluids (test mnemonic FLGLU except CSFGLU)

Testing Location

Chemistry-All Sites

Testing Frequency

Daily

Alternate Name(s)

FBS (Fasting Blood Sugar)

Reference Interval

Fasting

1 – 30 days

2.4-5.6 mmol/L

1 month – 150 years

3.9-6.1 mmol/L

Spot and 2 hr p.c.
3.6 - 11.1 mmol/L

Click here for critical values.

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