Sign in →

Test Code NBLD0174 Glucose, CSF

Useful For

The differential diagnosis of meningitis and neurologic diseases


Hexokinase/Ultraviolet (UV)/Bichromatic End point

Performing Laboratory

Bozeman Health Laboratory Services

Specimen Requirements

Specimen Type: Spinal fluid

Container/Tube: Screw-capped, sterile tube

Specimen Volume: 1 mL

Specimen Minimum Volume: 0.5 mL

Collection Instructions:

1. Label tube(s) with patient’s name (first and last), date and actual time of collection, and in order of collection 1, 2, 3, etc.

2. Maintain sterility and forward promptly. Do not send by pneumatic tube.

Additional Information: This test will be performed on tube #2 or #3 of tubes submitted from spinal fluid collection.

Specimen Transport Temperature

Ambient <1 hour/Refrigerated >1 hour

Specimen Stability


Specimen Type Temperature Time
Spinal fluid Ambient 1 hour
  Refrigerated 24 hours


Reference Values

40-75 mg/dL


Spinal fluid glucose values should be approximately 60% of the blood glucose value. This value must always be compared with concurrently-measured blood values for adequate clinical interpretation.

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding