<prompt> Normal Glucose level in CerebroSpinal Fluid CSF isGlucose is not present in CSF40 -- 70 mgdL80-- 120 mgdL120-- 180 mgdL  <response>: B 40-70 mgdL REFERENCE VALUES FOR SPECIFIC ANALYTESCerebrospinal FluidReference RangeConstituentSI UnitsConventional UnitsOsmolarity292-297 mmolkg water292-297 mOsmLElectrolytesSodium137-145 mmolL137-145 meqLPotassium2.7-3.9 mmolL2.7-3.9 meqLCalcium1.0-1.5 mmolL2.1-3.0 meqLMagnesium1.0-1.2 mmolL2.0-2.5 meqLChloride116-122 mmolL116-122 meqLC02 content20-24 mmolL20-24 meqLPC026-7 kPa45--49 mmHgpH7.31-7.34 Glucose2.22-3.89 mmolL40-70 mgdLLactate1-2 mmolL10-20 mgdLTotal protein:Lumbar0.15-0.5 gL15-50 mgdLCisternal0.15-0.25 gL15-25 mgdLVentricular0.06-0.15 gL6-15 mgdLAlbumin0.066-0.442 gL6.6-44.2 mgdLIgG0.009-0.057 gL0.9--5.7 mgdLIgG index0.29-0.59 Oligoclonal bands OGB2 bands not present in matched serum sample Ammonia15-47 pmolL25-80 pgdLCreatinine44-168 pmolL0.5-1.9 mgdLMyelin basic protein4 mgL CSF pressure 50-180 mmH2OCSF volume adult150 mL Red blood cells00LeukocytesTotal0-5 mononuclear cells per L DifferentialLymphocytes60-70 Monocytes30-50 NeutrophilsNone Normal CSF glucose range is 40-70 mgdl 2.2-3.9 mmol1. Normal CSF glucose concentration is 23 of blood glucose concentration. If mean plasma glucose of 100 mgdI is taken, then CSF glucose is 64 mgdI, i.e. ratio of CSF glucose: plasma glucose 0.64 i.e., 23. Cerebrospinal Fluid Chloride 120-130 mEql Glucose 50-75 mgdl Proteins, total 15-40 mgdl Albumin 8-30 mgdl 