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HelpTest Code GLUF Glucose, serum, Fasting
Specimen Requirements
Submit only one of the followings
Preferred
Specimen Type: Plasma
Container/Tube: Grey Top (Sodium fluoride / potassium oxalate)
Volume: 4.5mL
Minimum Volume: 0.5mL plasma
Collection Instructions: Patient should be fasted for at least 8 hours. Mixed specimen well to avoid clotting. Centrifuge within 2 hours.
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Acceptable
Specimen Type: Serum/Plasma
Container/Tube: Gold Top (SSTII) / Green Top (Li Heparin/PST)
Volume: 5.0mL / 4.5mL
Minimum Volume: 0.5mL Serum/Plasma
Collection Instructions: Patient should be fasted for at least 8 hours. Allow specimen to clot for 30 minutes and centrifuge within 2 hours
Sample Stability
** Preferred temperatures for storage prior to and during shipping to NUH **
| Specimen Type: | Plasma (Stabilized with sodium fluoride/potassium oxalate) |
|---|---|
| Ambient: | 2 days |
| Refrigerate: | 7 days |
| Frozen: | 3 months |
Reference Interval
4.0-6.0 mmol/L
Critical: <2.5 or >20.0 mmol/L
Days and Times Performed
24 hours, TAT 1 day
Methodology
Enzymatic (Hexokinase / G-6-PDH)
Service Code
31117
Update
Last updated 26/02/2022
Unacceptable Condition
| Haemolysis | NA |
|---|---|
| Icterus | NA |
| Lipaemic | NA |
| Others | NA |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Assessment of Carbohydrate metabolic status. Diagnosis of Diabetes Mellitus and hypoglycaemia
Alias
GLUFS