Glucose, CSF

Test Code
468


CPT Codes
82945

Preferred Specimen
1 mL CSF collected in a sterile, plastic, 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


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis


Methodology
Spectrophotometry (SP)

Setup Schedule
Set up: Daily; Report available: 1-2 days


Reference Range
40-80 mg/dL


Clinical Significance
Low CSF glucose concentrations suggest meningitis (especially if due to bacteria or tuberculosis), neoplastic involvement of the meninges, or other neurological disorder.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.