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UW Health SMPH
American Family Children's Hospital

UW Hospital and Clinics Lab Test Directory

Test Name: Protein, CSF

Test Code(s): CFP / GM2745

CPT Code(s): 84157

Methodology: Pyrogallol Red

Days Performed: Daily, 24 hours.

Turnaround Time: Stat: 1 hour.
Routine: 4 hours.


Specimen Requirements

Specimen: Cerebrospinal fluid (CSF) or ventricular fluid

Collection Instructions: 0.2 mL of CSF or ventricular fluid is sufficient volume for glucose, protein, and chloride.

Collection Container: Preferred: Sterile screw cap container
Also Acceptable: Numbered specimen tube from sterile disposable lumbar puncture tray, Red top

Sample Analyzed: Cerebrospinal fluid (CSF) or ventricular fluid aliquot

Volume Required: Preferred: 0.5 mL
Pediatrics: 0.1 mL

Specimen Processing: Centrifuge. Transfer cell-free supernate to plastic vial. Refrigerate.

Specimen Transport: Transport specimen to UWHC Core Laboratory (B4/220) immediately. Transport with coolant pack if coming from outreach location.

Stability: Ambient: 8 hours
Refrigerated: 3 days


Interpretation

Reference Interval:
 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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