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Protein, CSF

Test Code
CFTP


Alias/See Also
CSF, TP, Protein


CPT Codes
84157

Preferred Specimen
CSF TUBE (CFO)


Instructions
A CSF sample collected in a plain collection tube with no blood contamination is the preferred specimen.


Specimen Stability
Freshly collected CSF samples should be used. Otherwise, samples may be stored at 2 - 8o C for up to 72 hours.


Setup Schedule
24x7


Reference Range
15-45 mg/dL


Clinical Significance
The measurement of total protein in CSF is important in detecting increased permeability of the blood/brain barrier to plasma proteins or to detect increased intrathecal production of immunoglobulins. Increased permeability of the blood/brain barrier may result from conditions such as brain tumor, intracerebral hemorrhage or by inflammation caused by bacterial or viral meningitis, encephalitis, or poliomyelitis. Determination of increased intrathecal synthesis of immunoglobulins is important in the diagnosis of demyelinating diseases such as multiple sclerosis.


Performing Laboratory
CRMC Laboratory
CCMC Laboratory



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.