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Glucose, CSF
Test Code468
CPT Codes
82945
Preferred Specimen
1 mL CSF collected in a sterile screw-cap container
Minimum Volume
0.5 mL
Instructions
Freeze immediately after collection
Transport Temperature
Frozen
Specimen Stability
Room temperature: Unacceptable
Refrigerated: 14 days
Frozen: 28 days
Refrigerated: 14 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis
Methodology
Spectrophotometry (SP)
Setup Schedule
A.M. Sets up 5 days a week.
Clinical Significance
Low CSF glucose concentrations suggest meningitis (especially if due to bacteria or tuberculosis), neoplastic involvement of the meninges, or other neurological disorder.