Lactate; Pyruvate; Lactate/Pyruvate Ratio
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Lactate-Pyruvate, CSF
Test ID: LACPYR CSF
Test
Method
Enzymatic
Report Includes
Specimens
CSF
Test Location
London Health Sciences Centre, 339 Windermere Road, London ON N6A 5A5
Test Version
1-May-2025
Specimen
Specimens
CSF
Collection Containers
Sterile Container
Sample Volume
0.5 mL
Collection & Handling
Collection Instructions
CSF must be added to PCA immediately after collection in order to minimize
degradation of metabolites.
Handling Information
Pipette 0.5 mL of freshly drawn CSF from collection tube (on ice) into cold pyruvate tube containing 1 mL of 8% perchloric acid. Mix and spin in cold centrifuge. Aliquot supernatant into clean transport tube. Freeze immediately at -20°C.
Stability
| Frozen | Frozen |
|---|
Additional Stability Information
Frozen Strictly Required.
Test Version
1-May-2025
Performance / Interpretation
Method
Enzymatic
Specimen Retention Time
15 days
Results
| Name | Units | Reference Range | Conversion Factor | |
|---|---|---|---|---|
| Pyruvate | mmol/L |
|
||
| Lactate | mmol/L |
|
||
Test Location
London Health Sciences Centre, 339 Windermere Road, London ON N6A 5A5
Test Version
1-May-2025
Interface / Setup
HL7 Interface Codes
| Order Code | Result Codes | Units |
|---|---|---|
| LACPYR CSF | 66100Pyruvate,CSF | mmol/L |
| 66101Lactate,CSF | mmol/L | |
| 66102Lactate/Pyruvate Ratio,CSF |
Test Version
1-May-2025