Laboratory Medicine
Test Directory / Glucose
Glucose
Fluoride Oxalate
Test | Glucose |
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Common Abbreviations | RGLU, FGLU, GLU |
Profile | NA |
Tube type | fluoride EDTA |
Clinical Indication | Blood glucose measurement is most commonly used as a screening test for diabetes mellitus. It may also be performed to evaluate carbohydrate metabolism in conditions such as acute hepatitis, pancreatitis and Addisons disease. Blood glucose levles may also be measured when hypoglycaemia is suspected. Hypoglycaemia can be caused by exogenous insulin, neonatal respiratory distress, toxaemia of pregnancy, congenital enzyme defects, Reyes syndrome, alcohol ingestion, hepatic dysfunction, insulinoma, septicaemia and chronic renal failure. |
Specimen Type | Blood |
Sample type | Plasma |
Minimum Volume | 1mL |
Special Precautions | Fasting sample preferred |
Stability | Plasma: 3 days at 20-25C and 7 days at 2-8°C |
Turnaround Time | Urgent: 2 hours Inpatient: 4 hours Outpatient/ GP: 24 hours |
Laboratory | York and Scarborough |
Reference Interval | Fasting: 2.5-6.0 mmol/L Please refer to WHO criteria |
Limitations | Grossly lipaemic or haemolysed samples are not suitable for analysis. In very rare cases gammopathy, especially monoclonal IgM (Waldenstroms macroglobulinaemia), may cause unreliable results. |
Notes |