CSF Lactate Dehydrogenase (LDH)
- Sample Type
- Standard
- Fasting
- No
- Unit
- U/L
Lactate Dehydrogenase (LDH) in Cerebrospinal Fluid (CSF) is an enzyme released during cellular damage or death within the Central Nervous System. It is used as a biomarker to differentiate between bacterial and viral meningitis; bacterial infections typically show much higher LDH levels. It also helps assess CNS involvement in leukemia/lymphoma and can be elevated following stroke or intracranial hemorrhage.
Check Your Result
Check Your Result
Enter your lab result to see where you stand compared to the standard reference range.
Why Context Matters
A 'traumatic tap' (blood contamination during the spinal tap) will significantly elevate CSF LDH because Red Blood Cells contain high concentrations of LDH, leading to a false positive for CNS pathology.
Lab ranges are statistical averages, not biological laws. "Normal" for a 20-year-old male isn't normal for a 60-year-old female.
Clinical References
Source-of-truth databases and clinical guidelines for CSF Lactate Dehydrogenase (LDH):
Official Sources
Research & Guidelines
Related Indicators
Medically Reviewed by Dr. Binoy Babu, MBBS
Board Certified Doctor • 10+ Years Clinical Experience
Dr. Babu is a practicing physician dedicated to empowering patients with clear, actionable medical information. He founded 2opi to bridge the gap between complex lab reports and patient understanding, ensuring everyone has access to a reliable second opinion.
Get Notified When Dr. Babu Is Available