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.

Minimum Sample Volume

0.5 mLs

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)


Reference Range

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

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

Performing Lab


LOINC Code(s)