| Test Name: |
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Protein, CSF
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| Test Code(s): |
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CFP / GM2745
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| CPT Code(s): |
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84157
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| Methodology: |
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Pyrogallol Red
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| Days Performed: |
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Daily, 24 hours.
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| Turnaround Time: |
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Stat: 1 hour.
Routine: 4 hours.
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Specimen Requirements
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| Specimen: |
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Cerebrospinal fluid (CSF) or ventricular fluid
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| Collection Instructions: |
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0.2 mL of CSF or ventricular fluid is sufficient volume for glucose, protein, and chloride.
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| Collection Container: |
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Preferred: Sterile screw cap container
Also Acceptable:
Numbered specimen tube from sterile disposable lumbar puncture tray,
Red top
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| Sample Analyzed: |
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Cerebrospinal fluid (CSF) or ventricular fluid aliquot
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| Volume Required: |
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Preferred: 0.5 mL
Pediatrics: 0.1 mL
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| Specimen Processing: |
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Centrifuge. Transfer cell-free supernate to plastic vial. Refrigerate.
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| Specimen Transport: |
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Transport specimen to UWHC Core Laboratory (B4/220) immediately. Transport with coolant pack if coming from outreach location.
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| Stability: |
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Ambient: 8 hours
Refrigerated: 3 days
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Interpretation
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Reference Interval:
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| Age |
mg/dL |
| 0-5 days |
40-120 |
| 6-29 days |
20-80 |
| 30 days and up |
15-45 |
Refer to Tietz Textbook of Clinical Chemistry for more information about ventricular fluid protein.
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