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Test Code GLSF Glucose, Spinal Fluid

Reporting Name

Glucose, CSF

Useful For

Investigating possible central nervous system infection

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

CSF


Specimen Required


Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions: Centrifuge to remove any cellular material.


Specimen Minimum Volume

0.25 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
CSF Frozen (preferred) 30 days
  Refrigerated  7 days

Reference Values

Spinal fluid glucose concentration should be approximately 60% of the plasma/serum concentration and should be compared with concurrently measured plasma/serum glucose for adequate clinical interpretation.

 

For SI unit Reference Values, see https://www.mayocliniclabs.com/order-tests/si-unit-conversion.html

Day(s) Performed

Monday through Sunday

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

82945

LOINC Code Information

Test ID Test Order Name Order LOINC Value
GLSF Glucose, CSF 2342-4

 

Result ID Test Result Name Result LOINC Value
GLSF Glucose, CSF 2342-4

Report Available

Same day/1 day

Reject Due To

All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Method Name

Photometric, Glucose Oxidase/Peroxidase