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Test Code SFTP Protein, CSF, LAB195

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements

Container/Tube:

Preferred: CSF obtained from a spinal tap

Specimen Volume: A minimum volume of 4.5 µL plus a dead volume

Stability:1 day at 20-25 ⁰C, 6 days at 4-8 ⁰C, or 1 year at -20 ⁰C.

 

Note: 1. Blood in specimen will invalidate protein value.

          2. Spinal fluid should be collected before fluorescein is given or at least 24 hours after.

          3. Maintain sterility and forward promptly.

Reference Values

0 – 1 days

29 – 209 mg/dL

1 – 31 days

36 – 125 mg/dL

>31 days

15 – 45 mg/dL

Day(s) Test Set Up

Monday through Sunday

Useful For

CSF protein measurements are used in the diagnosis and treatment of conditions such as meningitis, brain tumor, and infections of the central nervous system. Examination of CSF total protein and specific proteins is used chiefly to detect increased permeability of the blood/brain barrier to plasma proteins or to detect increased intrathecal secretion of immunoglobulins (IGs).

Methodology

Turbidimetric method

Test Classification and CPT Coding

84155

Report Available

1 hour