Laboratory Services

Glucose, Spinal Fluid

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Updated Test Information:

Test Description
Glucose, Spinal Fluid


General Information

Used for evaluation of meningitis, neoplastic involvement of meninges, and other neurological disorders.

Container Type

CSF tube, plastic aliquot tube

Specimen Type

CSF, A simultaneous blood glucose level should also be obtained and submitted.

Specimen Requirements

Date and time of collection are required. CSF glucose values should be approximately 60% of the plasma values and should be compared with concurrently measured plasma values for adequate clinical interpretation.

Additional Processing Details

Centrifuge to remove any cellular material and transfer to a plastic aliquot tube.


Room temp - Not acceptable

Refrigerated - 7 days,

Frozen - 30 days

Unacceptable Specimen Conditions

Specimens received at room temperature.


Enzymatic, Hexokinase

Estimated TAT

0-2 days

Testing Schedule

Monday - Saturday

CPT Code(s)


Minimum Sample Volume

0.5 mLs

Reference Range

Children (<18 years old) 60-80 mg/dL

Adults (>=18 years old) 40-70 mg/dL

Performing Lab


LOINC Code(s)