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Test Code Billings Clinic: 4074 Protein, Spinal Fluid

Performing Laboratory

Billings Clinic Laboratory: Chemistry

Useful For

  • To detect increased permeability of the blood-brain barrier to plasma proteins
  • To detect increased intrathecal production of immunoglobulins

Methodology

Pyrogallol red-molybdate

Specimen Requirements

  • 1 mL of spinal fluid in a screw-capped, sterile vial or other suitable fluid container.
  • Send specimen refrigerated.
  • Maintain sterility and forward promptly.
  • Avoid hemolysis or contamination with blood.

Storage/Stability

Specimen Type Temperature Time
CSF Refrigerated (preferred) 3 days
  Frozen 6 months

 

Reject Due To

  • Contamination with blood

Reference Values

0 - 14 days:  56 - 102 mg/dL

14 - 28 days:  49 - 89 mg/dL

28 - 42 days:  41 - 75 mg/dL

42 - 56 days:  36 - 70 mg/dL

56 days - 2 years:  5 - 40 mg/dL

> 2 years:  15-45 mg/dL

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

84157 - Protein, total, other source

LOINC Code Information

Reporting Name LOINC Code
Protein, CSF 2880-3