Biochemistry
| Full details for "Glucose Tolerance Test (2 hour pp)". | |
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Name |
Glucose Tolerance Test (2 hour pp) |
Alternative name/Profile |
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Department |
Biochemistry |
Investigation |
The oral glucose tolerance test is used to assess whether a patient can use and store glucose normally. It may be used in the diagnosis of diabetes mellitus, gestational diabetes, insulin resistance, reactive hypoglycaemia and acromegaly, amongst other conditions. Glucose levels may be checked fasting, at 1- and 2- hours post-glucose load depending on the clinical indication. |
Specimen type |
Fluoride EDTA Plasma |
Sample type |
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Sample container & volume |
4 mL Grey EDTA Fluoride tube |
Frequency of analysis |
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Turnaround time |
1 day |
Availability |
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Notes |
75g of anhydrous glucose orally. 2 hours pp 7.8 - 11.0: impaired glucose tolerance. 2 hour pp > 11.0: consistent with diabetes mellitis.
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Related links |
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Reference range |
3.5 - 7.7 mmol/L |
Last updated |
Thu, 16 Oct 2025 15:41:16 IST |