Test Overview
Test Methodology

Colorimetric Enzyme Assay

Test Usage

Lactic acid in CSF normally parallels blood levels. With alterations in the CNS, CSF lactic acid levels change independently of blood values. Unlike bacterial meningitis, viral meningitis lactic acid levels in CSF are not usually elevated.

Reference Range *

No established reference range.

Test Details
Days Set Up
Daily, 24 hours
Analytic Time

2 hours

Soft Order Code
LACSF
MiChart Code
Lactic Acid, CSF
Synonyms
  • LACTIC, CSF
  • LACCSF
  • LACSF
  • Lactate Spinal Fluid
Laboratory
Chemical Pathology
Section
Automation
Specimen Requirements
Collection Instructions

Collect spinal fluid and place in a sterile tube or container. Freeze.

Normal Volume
1 mL CSF
Minimum Volume
0.5 mL CSF
Additional Information

This test has not been cleared nor approved by the U.S. Food and Drug Administration.

Billing
CPT Code
83605
Fee Code
20734
LOINC
2520-5
NY State Approved
No