Test Code PYRC Pyruvate, Spinal Fluid
Additional Codes
Hospital Ordering Code |
Lab2608 Miscellaneous Lab |
Reporting Name
Pyruvic Acid, CSFUseful 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
Testing Algorithm
For information see: Epilepsy: Unexplained Refractory and/or Familial Testing Algorithm
Method Name
Spectrophotometry (SP)
Performing Laboratory

Specimen Type
CSFAdditional 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.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
Specimen Type | Temperature | Time |
---|---|---|
CSF | Refrigerated (preferred) | 7 days |
Frozen | 14 days | |
Ambient | 7 days |
Reject Due To
Gross hemolysis | Reject |
Special Instructions
Reference Values
0.06-0.19 mmol/L
Day(s) Performed
Monday, Thursday
CPT Code Information
84210
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
PYRC | Pyruvic Acid, CSF | 14122-6 |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
83356 | Pyruvic Acid, CSF | 14122-6 |
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.Report Available
2 to 5 daysForms
1. Biochemical Genetics Patient Information (T602)
2. If not ordering electronically, complete, print, and send a Biochemical Genetics Test Request (T798) with the specimen.