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GLUCOSE, CSF
MessageChemistry
Test Code
LAB185
Alias/See Also
Spinal fluid Glucose
CPT Codes
82945
Includes
Glucose, 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
Hemolysis negatively biases results.
LAB: Centrifuge and remove supernatant within 1 hour of collection.
Analyze immediately. Do NOT delay testing.
LAB: Centrifuge and remove supernatant within 1 hour of collection.
Analyze immediately. Do NOT delay testing.
Transport Container
Sterile stoppered container
Transport Temperature
Refrigerate
Specimen Stability
Refrigerated: 7 days.
Frozen: up to 6 months.
Frozen: up to 6 months.
FDA Status
Approved
Setup Schedule
Everyday
Report Available
Same day
Reference Range
40-70 mg/dL
Performing Laboratory
Hoag Newport/ Hoag Irvine
