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22812 Lactate, CSF

Lactate, CSF
Test Code: LAC-CSF
Synonyms/Keywords
Lactic Acid, CSF, L-Lactate, CSF​
Useful For
Measurements of lactic acid are useful in the diagnosis and treatment of lactic acidosis (abnormally high acidity of the blood). ​
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ CSF​
CSF Tubes 1-4
Sage Cup
Sterile Container​
 ​ 1 mL​ 0.2 mL​ ​
Collection Processing Instructions
Keep specimen cool and send to the lab within 20 minutes of collection
Indicate "CSF" on request form.
Specimen Stability Information
Specimen Type Temperature Time
CSF​ ​ Ambient​ 60 min​
Frozen​ >60 min​
Rejection Criteria
​Significant icterus
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield Monday through Sunday​ Less than 2 hours​ Enzymatic Fixed Assay/ Beckman AU
​Neillsville​Monday through Sunday​​Less than 2 hours​​Photometric Biochromatic Endpoint/Siemens Dimension
Reference Range Information
Performing Location Reference Range
Marshfield​ 0-3.0 mmol/L​
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
83605 ​ ​ ​ ​ ​
Synonyms/Keywords
Lactic Acid, CSF, L-Lactate, CSF​
Ordering Applications
Ordering Application Description
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ CSF​
CSF Tubes 1-4
Sage Cup
Sterile Container​
 ​ 1 mL​ 0.2 mL​ ​
Collection Processing
Keep specimen cool and send to the lab within 20 minutes of collection
Indicate "CSF" on request form.
Specimen Stability Information
Specimen Type Temperature Time
CSF​ ​ Ambient​ 60 min​
Frozen​ >60 min​
Rejection Criteria
​Significant icterus
Useful For
Measurements of lactic acid are useful in the diagnosis and treatment of lactic acidosis (abnormally high acidity of the blood). ​
Reference Range Information
Performing Location Reference Range
Marshfield​ 0-3.0 mmol/L​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield Monday through Sunday​ Less than 2 hours​ Enzymatic Fixed Assay/ Beckman AU
​Neillsville​Monday through Sunday​​Less than 2 hours​​Photometric Biochromatic Endpoint/Siemens Dimension
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
83605 ​ ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.