The composition of CSF has some similarities to plasma; however, most analyte reference intervals are different for CSF than they are for plasma. For example, the protein level of normal CSF is dramatically lower than that of plasma.
Chemicals that are often evaluated in CSF samples include:
| Chemical | CSF Reference Interval
|
Chloride
| 120-132 mmol/L
|
Protein
| 15-45 mg/dL
|
Glucose
| 40-70 mg/dL
|
Other chemicals that are also present in CSF include:
- Calcium
- Cholesterol
- Creatinine
- Lactic acid dehyrdogenase (LDH)
- Phosphorus
- Urea
- Uric acid
