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HelpTest Code LAB185 Glucose, CSF
Useful For
The evaluation of meningitis, neoplastic involvement of meninges and other neurological disorders
Methodology
Enzymatic reference method with hexokinase
Performing Laboratory
Bozeman Health Laboratory Services
Specimen Requirements
Specimen Type: Spinal fluid
Container/Tube: Screw-capped, sterile tube
Specimen Volume: 1 mL
Specimen Minimum Volume: 0.5 mL
Collection Instructions:
1. Label tube(s) with patient’s name (first and last), date and actual time of collection, and in order of collection 1, 2, 3, etc.
2. Maintain sterility and forward promptly. Do not send by pneumatic tube.
Additional Information: This test will be performed on tube #2 or #3 of tubes submitted from spinal fluid collection.
Specimen Transport Temperature
Ambient <1 hour/Refrigerated >1 hour
Specimen Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| Spinal fluid | Ambient | 1 hour |
| Refrigerated | 24 hours |
Reference Values
40-75 mg/dL
CSF glucose values should be approximately 60 % of the plasma values and must always be compared with concurrently measured plasma values for adequate clinical interpretation.
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
82945