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Epic Test Code LAB195 Protein, Total: Spinal Fluid (CSF)

Performing Location(s)

BMC

Specimen Type

Spinal Fluid

Preferred Container

Reference Cerebrospinal Fluid Panels for Recommend Collection Tube

Minumum Volume to Submit for Testing

0.5 mL CSF

  • Multiple test can be performed from this volume. For question please contact the lab at 547-3975.  

Storage Requirements

Refrigerate the sample if a delay (>1hr) in transportation to the laboratory is anticipated.

Deliver on ice if accompanied by CSF Lactic Acid.

Transportation Needs

Deliver specimen to the laboratory within 1 hour of collection. If not possible see “Storage Requirements”

Causes for Rejection

Mislabeled or unlabeled specimen

Contaminated with blood

> 4 days at Room Temperature

> 4 days Refrigerated

Limitations

This methodology is prone to aminoglycoside interference. The presence of Neomycin, Gentamicin, Tobramycin, Kanamycin, Geneticin, Streptomycin, Amikacin and/or Dihydrostreptomycin will falsely increase the Protein result in specimens tested by this Fujita method.

 

Specimens with visible red cells or hemolysis should be avoided since hemolysis increases CSF Total Protein results (at 25 mg/dL hemoglobin)The sensitivity of the CSF Total Protein method is 2 mg/dL [20 mg/L] and represents the lowest concentration of cerebrospinal fluid protein that can be distinguished from zero. This sensitivity is defined as the concentration of two standard deviations above the 0 mg/dL [0 mg/L] level (n=20).

Reference Values

Fluid Type Units Reference Range High Critical Value
All populations mg/dL 15 - 45 > 100

 

Days of Analysis

All

Available STAT

Yes

Methodology

Beckman AU/Dx Series

CPT Code

84157

Last Updated

29-June-20