Home
HelpTest Code LAB187 CSF Lactic Acid
Clinical System Name
CSF Lactic Acid
Synonyms
LAB187
LACT CSF
Lactate, CSF
Sample Requirements
Specimen: CSF
Container(s): CSF Tube, Sterile Screw-Capped Container, Sterile Screw-Capped Tube, Syringe
Preferred Vol: 1.0 mL
Minimum Vol: 0.25 mL
Note: Note collection type on requisition and container (e.g. "LP" for CSF lumbar puncture.) Send to the lab immediately for accurate results. Method is affected by exposure to RBC's (longer than 15 minutes). Place specimen in outside pocket of a pre-filled biohazard bag of ice, then put into a separate biohazard bag for transport.
Processing Instructions
Reject due to: Age of specimen (give to Core Lab for determination)
Spin: Y
Aliquot: Y
Temp: 2-8oC
Storage location: Core 5 Chemistry Refrigerator
Notes: CSF must be removed from red blood cells within 15 minutes for an accurate lactic acid level.
Off-site collection: Specimen should be centrifuged within 15 minutes of collection. Spin CSF and transfer supernatant to plastic tube and refrigerate or freeze.
Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| Unspun CSF | RT | ≤ 15 min |
| CSF | RT |
≤ 8 h |
| CSF | 2-8 C |
≤ 14 d |
| CSF | -20 C or -70 C |
≤ 30 d |
Availability
| STAT | Performed | TAT |
|---|---|---|
| Y | 24/7 | 1 h |
Performing Laboratory
Seattle Children's Laboratory
Department
Department: Core Chemistry
Phone Number: 206-987-2617 (Client Services)
CPT Codes
83605
Methodology
Method: Colorimetric method by Vitros 4600
Analytical Volume: 0.02 mL + 0.03 mL dead space
Reference Range
0.0 - 2.8 mMol/L