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Test Code SFTP Protein, CSF, LAB195


Pyrogallol Red

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements


Preferred: CSF obtained from a spinal tap

Specimen Volume: 0.2 mL of spinal fluid in a screw-capped, sterile vial.

                                Maintain sterility and forward promptly.

Stability: Remaining cerebrospinal fluid specimens should be refrigerated or frozen.


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

0-29 days: 40-120 mg/dL

≥30 days: 15-45 mg/dL

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding


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).