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Protein, CSF
MessageChemistry
Test Code
LAB195
Alias/See Also
CSF, Spinal Fluid
CPT Codes
84157
Includes
Protein, Spinal Fluid
Preferred Specimen
Collected by physician and placed in sterile, non-preserved tube(s). Lumbar Puncture, Shunt, or Leakage
Send to Laboratory IMMEDIATELY
Send to Laboratory IMMEDIATELY
Minimum Volume
100 uL CSF
Other Acceptable Specimens
If collecting 3 – 4 CSF tubes:
Tube 1: Chemistry & Serology
Tube 2: Microbiology
Tube 3: If sent – hold for possible additional orders, or use for Reference or Cytology testing
Tube 4: Cell Count & Differential
(Acceptable to have two orders for Cell Count – use tubes 1 and 4, with separate orders placed for each Cell Count from ordering MD)
If only one CSF tube sent, route as follows or otherwise instructed by ordering MD:
First: Microbiology
Second: Hematology
Third: Cytology
Fourth: Chemistry
Tube 1: Chemistry & Serology
Tube 2: Microbiology
Tube 3: If sent – hold for possible additional orders, or use for Reference or Cytology testing
Tube 4: Cell Count & Differential
(Acceptable to have two orders for Cell Count – use tubes 1 and 4, with separate orders placed for each Cell Count from ordering MD)
If only one CSF tube sent, route as follows or otherwise instructed by ordering MD:
First: Microbiology
Second: Hematology
Third: Cytology
Fourth: Chemistry
Instructions
LAB: Centrifuge specimen and promptly bring to Chemistry Tech
Hemolysis will interfere with results.
Hemolysis will interfere with results.
Specimen Stability
Ambient: ≤ 4 hrs
Refrigerated: ≤ 3days
Frozen: 6 months
Refrigerated: ≤ 3days
Frozen: 6 months
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
CSF: Fluoride oxalate
Report Available
Same day
Reference Range
12 - 60 mg/dL
Performing Laboratory
Hoag Newport/ Hoag Irvine
