Lactic Acid, CSF

Clinical Significance

Lactic acid levels in CSF normally parallel blood levels. Increased CSF lactic acid levels occur in trauma, seizure, brain abscess, multiple sclerosis and bacterial meningitis.

Specimen Requirements

1.0 mL CSF in a Sterile Container

Transport And Storage

3 hours Ambient
24 hours Refrigerated
90 day Frozen (Transport)

Collection Instructions

If specimen is not clear or contains blood, centrifuge and separate supernatant before freezing

If multiple Fluid or CSF test are being requested please specify order of importance

Minimum Volume

Neonatal Volume

Reference Range:

Neonate	10-60 mg/dL
3-10 Days	10-40 mg/dL
11 Days-15 Years	10-25 mg/dL
Adult	10-22 mg/dL

Methodology:

• Spectrophotometry (SP)

Clinical Significance

Lactic acid levels in CSF normally parallel blood levels. Increased CSF lactic acid levels occur in trauma, seizure, brain abscess, multiple sclerosis and bacterial meningitis.

CDM

00913333

CPT Coding

83605