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HelpTest Code PYRC Pyruvate, Spinal Fluid
Additional Testing Requirements
This test does not calculate the lactate:pyruvate ratio. To obtain this information, both this test and LASF1 / Lactic Acid, Spinal Fluid must be ordered. The ratio can be calculated from the results obtained from these tests.
Specimen Required
Specimen Type: Spinal fluid
Container/Tube: Sterile vial
Specimen Volume: 0.6 mL
Collection Instructions: Send specimen from vial 4.
CMH COLLECTION: 0.5 mL in sterile cup. Place immediately on ice and deliver to the lab.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| CSF | Refrigerated (preferred) | 7 days | |
| Frozen | 14 days | ||
| Ambient | 7 days |
Testing Algorithm
For more information see: Epilepsy: Unexplained Refractory and/or Familial Testing Algorithm
Useful For
Investigating possible disorders of mitochondrial metabolism, when used in conjunction with cerebrospinal fluid lactate, collected at the same time, to determine the lactate-to-pyruvate (L:P) ratio
Evaluating patients with neurologic dysfunction and normal blood L:P ratios
Reject Due To
| Gross hemolysis | Reject |
Day(s) Performed
Monday, Wednesday
Report Available
4 to 8 daysReporting Name
Pyruvic Acid, CSFReference Values
0.06-0.19 mmol/L
Method Name
Spectrophotometry (SP)
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
84210