Glucose, CSF




Test Mnemonic

CGLUC

CPT Codes

  • 82945 - QTY (1)

LOINC ®

2342-4

Performing Laboratory

Cleveland Clinic Laboratories


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLCerebrospinal fluid (CSF)Sterile container Refrigerated 

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.3 mL     

Stability

Environmental Condition Description
AmbientImmediately
Refrigerated1 week
Frozen1 month

Days Performed

Sun - Sat

Turnaround Time

8 hours

Methodology

Name Description
Glucose Hexokinase 

Reference Range

Glucose, CSF
Sex Age From Age To Type Range Range Unit
   Years17 YearsNormal60 - 80mg/dL
 18 Years99 YearsNormal40 - 70mg/dL

Clinical Info

Evaluation of CSF, diagnosis of meningitis Lumbar CSF glucose values of healthy patients are approximately 60% of the plasma values and must always be compared with a concurrently measured plasma value for adequate clinical interpretation. References: 1. Glucose HK (GLUC3) [package insert V 12.0 English]. Roche Diagnostics, Indianapolis, IN; May 2016. 2. Tumani, H., Hegen, H. (2015). Chapter 7: Glucose and Lactate. F. Deisenhammer et al. (eds.), Cerebrospinal Fluid in Clinical Neurology. Switzerland: Springer International Publishing.