| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Lactic Acid, CSF
Test CodeLACSF
Alias/See Also
LAB187
CPT Codes
<p>83605</p>
Preferred Specimen
Specimen Type: CSF
Collection Container/Type: Sterile container
Submission Container/Tube: Sterile container
Specimen Volume: 1 mL
Collection Instructions: If specimen is not clear or contains blood, centrifuge and separate supernatant fluid before freezing.
Additional Information:
- The assay manufacturer, Roche, notes that N-acetylcysteine, when administered in high concentrations (such as for treatment of acetaminophen overdose), can interfere with their assay for lactate (lactic acid), leading to falsely low results.
Minimum Volume
0.5 mL
Instructions
If specimen is not clear or contains blood, centrifuge and separate supernatant fluid before freezing.
Note: The assay manufacturer, Roche, notes that N-acetylcysteine, when administered in high concentrations (such as for treatment of acetaminophen overdose), can interfere with their assay for lactate (lactic acid), leading to falsely low results.
Note: The assay manufacturer, Roche, notes that N-acetylcysteine, when administered in high concentrations (such as for treatment of acetaminophen overdose), can interfere with their assay for lactate (lactic acid), leading to falsely low results.
Transport Temperature
Frozen
Specimen Stability
Room temperature: 3 hours
Refrigerated: 24 hours
Frozen: 90 days
Methodology
Spectrophotometric
Setup Schedule
Monday-Friday All Shifts Sunday Night Report available: Next Day
Report Available
1-2 days
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 | |
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.
Performing Laboratory
Quest Diagnostics Nichols Institute 14225 Newbrook Drive Chantilly, VA 20153
Last Updated: February 17, 2023