Pyruvic Acid, CSF
Test Mnemonic
FPYRUV
CPT Codes
- 84210 - QTY (1)
LOINC ®
14122-6
Aliases
- Pyruvate, CSF
Performing Laboratory
n/a
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Cerebrospinal fluid (CSF) | Clean container | Refrigerated | Refer to special information for processing instructions. |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 3 days untreated; 8 hours once TCA treated (deproteinized) |
| Refrigerated | 21 days untreated; 30 days once TCA treated (deproteinized) |
| Frozen | 30 days once TCA-treated (deproteinized) * Frozen stability information is for TCA treated sample only * |
Days Performed
Mon - Fri
Turnaround Time
1 - 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
Specimen processing/deproteinization instructions: Collect 3 mL spinal fluid in clean tube. 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. Write the precipitation date and time on the precipitation tube. 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.
Clinical Info
n/a
Clinical Limitation
n/a
Clinical Reference
n/a