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Protein, Total, Cerebrospinal Fluid

Protein, Total, Cerebrospinal Fluid

Epic Mnemonic
Sunquest Mnemonic

LAB195
CTP

Category

Chemistry

Methodology

Turbidimetric

Test Performance Schedule

Sunday - Saturday

Result Availability

Within 24 hours – STAT upon request

Specimen Required

Container

Sterile plastic tubes from CSF collection kit

Volume

Pref. Vol.: 1.0 mL CSF
Min. Vol.: 0.5 mL CSF

Collection Instructions

• Collected by lumbar, ventricular, or cisternal puncture into sterile plastic tubes

• Tube numbers should correspond to sample collection order

Transportation Instructions

• Hand Deliver – DO NOT transport through vacuum tube system

• Centrifuge CSF for 15 minutes

• Promptly transfer supernatant to 2nd plastic tube

• Refrigerate

Stability

Room Temperature: 1 day

Refrigerated: 5 days

Causes for Rejection

Hemolysis: Presence of hemoglobin interferes with the assay

CPT Codes

84157

Effective/Revised

03/29/2017

Clinical Significance

Cerebrospinal fluid (CSF) protein measurements are used in the diagnosis and treatment of conditions such as meningitis, brain tumors and infections of the central nervous system.

 

Most CSF protein originates by diffusion from plasma across the blood-CSF barrier. Elevated levels occur as a result of increased permeability of the blood-CSF barrier or with increased local synthesis of immunoglobulins.

 

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