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Test Code GLSF1 Glucose, Spinal Fluid


Specimen Required


Collection Container/Tube: Sterile vial

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions:

1. Centrifuge to remove any cellular material.

2. Cerebrospinal fluid specimens should be processed without delay; they may contain cellular constituents, as well as organisms, that lower the concentration of glucose with time.


Useful For

Investigating possible central nervous system infection

Method Name

Photometric, Hexokinase

Reporting Name

Glucose, CSF

Specimen Type

CSF

Specimen Minimum Volume

0.25 mL

Specimen Stability Information

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

Reject Due To

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

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.

Performing Laboratory

MCHS- Mankato

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
GLSF1 Glucose, CSF 2342-4

 

Result ID Test Result Name Result LOINC Value
GLSF1 Glucose, CSF 2342-4

Day(s) Performed

Monday through Sunday

Report Available

Same day/1 to 2 days