Glucose (CSF)
Background:
CSF glucose is normally 60 - 80 % of plasma glucose concentration.
Decreased concentration are noted in bacterial, tuberculous and some fungal meningitides; and in hypoxia. CSF glucose concentrations < 1.0 mmol/L are strongly predictive of bacterial meningitis.
Abnormal ratios may also be observed in severe hyperglycaemia, and following administration of hypoglycaemic agents.
CSF-to-serum glucose ratios have limited utility in neonates and in patients with severe hyperglycaemia.
Reference ranges:
| Age range | Reference ranges (g/L) | |
|---|---|---|
| All | 2.5-4.5 | |
Other Comments:
For more information, please see the following: CSF Analysis - Lab Tests Online
See also: Protein (CSF)
About This Test
Department: Biochemistry
Requirement:
- Fluoride oxalate (grey top)
Turnaround Time:
Within 24 hours