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HelpTest Code GLU CSF Glucose, CSF
Additional Codes
LAB185
Collection Method
Lumbar puncture or CSF shunt
Minimum Volume
0.5ml
Container
Sterile CSF Tube
Acceptable Specimens
Sterile CSF Tube
Reference or Target Ranges
| Age | Male | Female |
| < 12 years |
50-80 comment 1 |
50-80 comment 1 |
| > 12 years |
40-70 comment 1 |
40-70 comment 1 |
comment 1:
CSF Glucose should be approximately 60% of the plasma values and must always be compared with concurrently measured plasma values for adequate clinical interpretation.
Reportable Units
mg/dL
Critical Value
Not defined for this assay
Reasons for Rejection
| Hemolysis Threshold | 1000 mg/dL |
| Icterus Threshold | 60 mg/dL |
| Lipemia Threshold | 1000 mg/dL |
| Other | QNS, contaminated, improperly Labeled, improper specimen type |
Specimen Stability
| Ambient | ASAP |
| Refrigerated (4°C to 8°C) | 24 hours |
| Frozen(-40°C to 0°C) | N/A |
Performance Information
| Days and Time Performed | 24/7 |
| Expected Turn Around Time | Stat: 1 hour Routine: 4 hours |
| Stat Availability | Yes |
| Performing Bench | CPH Chemistry |
| Methodology/Method Description | Roche Cobas |
CPT Codes
82945
Last review/edit date
March 2024