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Test Code 131 Glucose Spinal Fluid (CSF)


Additional Codes


PowerChart: Glucose CSF

MA Cerner: CSF Glucose.

Specimen Requirement

0.5 mL spinal fluid is required.

Additional Specimen Collection Information

Spinal fluid collected by a physician in a sterile containe. Label the specimen appropriately with two identifiers, patient name and another identifier, (patient ID number, DOB, etc.) include date and time of collection. Transport the specimen to the laboratory immediately after collection.

Centrifuge prior to analysis.

Useful For

Investigating possible central nervous system infection


Testing is performed Monday through Sunday.

Routine orders: Typically completed within 4 hours after the specimen arrives at the testing site.

Expedite: Typically completed within 1 hour after the specimen arrives at the testing site.

STAT: Typically completed within 30 minutes after the specimen arrives at the testing site.

CPT Code Information

82945 Chemistry: Glucose, body fluid, other than blood

LOINC Code Information

2342-4 Glucose [Mass/Volume] In Cerebral Spinal Fluid

Test Method

MercyOne DBQ:

Timed Endpoint; Beckman DXC880i

MA East and West:

Enzymatic Colorimetric Method; Roche Cobas 6000

Reference Values

< 1 Month: Reference values not established. Results are subject to interpretation by the clinician.

> 1 Month to Adult: 40-75 mg/dL

  • Critical value: <40 mg/dL