Myelin Basic Protein : 663

Test Code
MYELBP or 663

Alias/See Also
MBP

CPT Codes
83873

Instructions
CSF.
CSF must be clear.
 Do not centrifuge.
 CSF collection tube #4 is preferred.
 Submitting 4th lumbar puncture collection tube minimizes blood contamination.

Transport Container
Transport 1.2 mL CSF, (Min: 0.5 mL).

Transport Temperature
Refrigerated.

Specimen Stability
Ambient: 7 days; Refrigerated: 14 days; Frozen: 21 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis.

Methodology
Radioimmunoassay

Setup Schedule
Monday & Thursday

Report Available
3-7 days (From receipt at performing laboratory)

Limitations
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Reference Range
MBP Result Interpretation
0-4.0 mcg/L Negative
4.1-6.0 mcg/L Weakly Positive
greater than 6.0 mcg/L Positive

Clinical Significance
The concentration of MBP is often increased in patients with demyelinating diseases such as multiple sclerosis and may be increased in patients with head injury, CNS trauma, tumor, stroke, and viral encephalitis.

Performing Laboratory
Quest Diagnostics



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.