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Lab Manual for UCSF Clinical Laboratories

Lab Manual for SFGH

Internal Resources


Item Value
Available Stat? Yes
Test code CSFG
Performed by? Chemistry
Sendout? no
Price range $
In House Availability Stat or routine, 24 hours/7 days
Principle See GLUCOSE, Plasma, Serum.
Interpretation Decreased CSF glucose indicates infection.
Amount to Collect 0.5 mL
Sample type CSF
Normal range 40 – 70 mg/dL (2.20-3.86 mmol/L)
60 – 80% of blood glucose levels
CSF Glucose values of < 30 mg/dL (< 1.65 mmol/L) and >300 mg/dL (> 16.53 mmol/L) are considered Critical Values and are called to the physician or patient care unit immediately.
Stability CSF specimens should be analyzed for glucose as soon as possible after collection, in order to minimize any in vitro decrease in glucose concentrations associated with white cell metabolism.
References Bayer(TM) Clinical Methods Glucose Hex. II (37) B01-4597-01 Advia 1650 Operator's Guide. PN 073-5001-09. Last accessed June 2003. Siemens Medical Solutions Diagnostics, Malvern, PA.
CPT coding 82945
Last Updated 10/20/2012 10:00:16 AM
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