Pyruvic Acid, CSF
Test Mnemonic
FPYRUV
CPT Codes
- 84210 - QTY (1)
LOINC ®
14122-6
Aliases
- Pyruvate, CSF
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Cerebrospinal fluid (CSF) | Clean container | Refrigerated |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 8 hours * Stability information is for TCA treated sample. |
| Refrigerated | 1 month *Stability information is for TCA treated sample. |
| Frozen | 3 months *Stability information is for TCA treated sample. |
Days Performed
Mon - Fri
Turnaround Time
0 - 4 days
Methodology
| Name | Description |
|---|---|
| Spectrophotometry (S) |
Reference Range
| Pyruvic Acid, CSF | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Years | 99 Years | Normal | 0.03 - 0.15 | mmol/L |
Special Info
Place cerebrospinal fluid (CSF) on ice immediately after collection. Deproteinize CSF within 30 minutes of collection to stop additional evolution of pyruvate. Specimen processing/deproteinization instructions: Collect 3 mL spinal fluid in clean tube. Within 30 minutes of draw, add 1 mL well mixed CSF to 2 mL cold 12% TCA. Repeat with separate 1 mL of CSF into a second tube of cold 12% TCA. (Note: 1:2 ratio of CSF to 12% TCA must be maintained for accurate quantitation). Vortex precipitation tubes vigorously and refrigerate or place on wet ice for 10 minutes. After 10 minutes of cold incubation, centrifuge for 10 minutes at 1000G. Decant supernatant into a clean, well-sealed transport tube. Label tube as " Spinal fluid TCA Precipitate". Precipitated sample can be transported at refrigerated temperature. *Stability Information is for precipitated sample.