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Test Code 131 Glucose Spinal Fluid (CSF)

Biohazard Infectious

Additional Codes


PowerChart: Glucose CSF

Epic: LAB185 Glucose, CSF

MA Cerner: CSF Glucose.

Test Method

Mercy DBQ and Finley:

Timed Endpoint; Beckman DXC600/DXC880i

MA East and West:

Bichromatic Endpoint Technique; Siemens Xpand

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.


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.

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

CPT Code Information

82947 Chemistry: Glucose, quantitative, blood (except reagent strip)

Useful For

Investigating possible central nervous system infection

LOINC Code Information

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