Test Code

CPT Codes

Preferred Specimen

Transport Container

Transport Temperature

Setup Schedule
Set Up:
Report Available:

Reference Range
CSF GLUCOSE mg/dL 0Y 00M F 40-70 0Y 00M M 40-70

Clinical Significance
The glucose concentration in CSF is maintained by both facilitated transport and simple diffusion. Glucose is removed from the CSF by transport across capillaries and arachnoid villi. Glucose is also utilized by cells lining the ventricular cavities and subarachnoid spaces. As a result, it normally takes several hours for the serum glucose to equilibrate with the CSF glucose. The normal CSF-to-serum glucose ratio is approximately 0.6; ventricular CSF has a higher glucose concentration than CSF in the lumbar space by 6 to 18 mg/dL (0.33 to 1.0 mmol/L) [24].

Performing Laboratory
LMH - Chemistry  x3739 or 3764

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.