SPINAL FLUID

NORMALS

SI UNITS

Pressure

75-200 mmH2O

Cell Count

0-5 cells

Differential

No RBCs or granulocytes

Protein

15-45 mg/dl

0.15-0.45 g/L

A:G Ratio

8:1

IgG

3-12% of total protein

Glucose

40-80 mg/dl

2.22-4.44 mmol/L

Lactate

10-20 mg/dl

1.1-2.2 mmol/L

Urea

10-15 mg/dl

3.6-5.3 mmol/L

Glutamine

< 20 mg/dl

< 1370 µmol/L