glucose in CSF

Reference interval

• 40-70 mg/dL (CSF)

Principle

see glucose in serum/urine/CSF

Clinical significance

• low CSF glucose with normal serum glucose is consistent with bacterial meningitis

Decreases

• bacterial meningitis

Specimen

No special patient preparation is required.

Collect cerebrospinal fluid specimens by standard sterile procedure. (see lumbar puncture) Hemolyzed specimens should not be used. Freeze specimen if not analyzed immediately. CSF specimens are sometimes contaminated with bacteria & other cellular constituents that lower the concentration of glucose with time.

Minimum sample required is 0.5 milliliter with an optimum size of 1.0 milliliter or larger.

More general terms

• glucose in body fluid

Additional terms

• cerebrospinal fluid
• glucose (dextrose, D-glucose)

Component of

• cerebrospinal fluid analysis
• glucose in CSF/glucose in serum/plasma

Patient information

glucose in CSF patient information