Glucose Challenge (Polycose)

Testing Laboratories

Department

Chemical Pathology

Delphic Registration Code (Alpha Code)

PT50

Test Code (Numeric Code)

0156

Laboratory Handling

Phlebotomy

Polycose 50g Carbotest given orally. The patient must finish the drink within five minutes of commencement. Sample collected one hour post. Record gestation period (e.g. 35 weeks) The patient is then free to wander around etc. but must NOT eat, smoke, excercise or drink during the next hour. Take a blood sample for glucose estimation (4 mL heparin rube- green top) exactly one hour after the drink is finished. Heparin samples prefered. Use flouride tube if > 2hr delay likely (e.g. Mason Clinic).

Sample Stability

6 hours

Associated Tests

• Glucose (Blood)

Synonyms

Polycose Challenge

Turnaround Time

3 hours

Specimen Type

• Plasma
• Serum

Specimen Requirements

Tube/Container Type:

Preferred

• Lithium Heparin - Non-gel (Green Cap)

Acceptable

• Fluoride (Grey Cap)
• Plain (Red Top)
• SST II (Gold Cap)

Preferred Sample Volume (ml)

4

Minimum Sample Volume (ml)

1

Paediatric Specimen Requirements

Tube/Container Type:

Preferred

• Lithium Heparin PST- Gel (Light Green Cap)

Acceptable

• Plain (Red Top)
• SST II (Gold Cap)

Minimum Sample Volume (ml)

0.4

Contact Information