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HelpTest Code PROT CSF Protein, CSF
Additional Codes
LAB195
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 |
| all ages |
15 - 45 comment 1 |
15 - 45 comment 1 |
comment 1:
Hemoglobin interferes with this assay. Results should be interpreted with caution as hemolysis may be present due to traumatic lumbar puncture or due to a CNS hemorrhagic process.
Reportable Units
mg/dl
Critical Value
>100 mg/dl
Reasons for Rejection
| Hemolysis Threshold | 500 mg/dL |
| Icterus Threshold | 20 mg/dL |
| Lipemia Threshold | 3000 mg/dL |
| Other | QNS, contaminated, improperly Labeled, improper specimen type |
Specimen Stability
| Ambient | 24 hours |
| Refrigerated (4°C to 8°C) | 6 days |
| Frozen(-40°C to 0°C) | 1 year |
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
84157
Last review/edit date
March 2024