Test Overview
Test Methodology
Hexokinase, NADH Endpoint
Test Usage
Differential diagnosis of meningitis and central nervous system diseases.
Reference Range *
50 - 70 mg/dL (2.78-3.89 mmol/L), should be interpreted with simultaneous blood glucose. Critical value: <30 mg/dL or >300 mg/dL.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
Days Set Up
Daily, 24 hours
Analytic Time
2 hours
Soft Order Code
GLCSF
MiChart Code
Glucose, CSF
Synonyms
- Glucose, Spinal Fluid
- CEREBROSPINAL FLUID GLUCOSE
- GLCSF
Laboratory
Chemical Pathology
Section
Automation
STAT Availability
STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).
Specimen Requirements
Collection Instructions
Collect spinal fluid; refrigerate.
Normal Volume
0.5 mL CSF
Minimum Volume
0.25 mL CSF
Billing
CPT Code
82945
Fee Code
22226
LOINC
2342-4