Pyruvic Acid, CSF

Test Mnemonic


CPT Codes

  • 84210 - QTY (1)




  • Pyruvate, CSF

Performing Laboratory

Cleveland Clinic Laboratories

Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLCerebrospinal fluid (CSF)Clean container Refrigerated 


Environmental Condition Description
Ambient8 hours * Stability information is for TCA treated sample.
Refrigerated1 month *Stability information is for TCA treated sample.
Frozen3 months *Stability information is for TCA treated sample.

Days Performed

Mon - Fri

Turnaround Time

0 - 4 days


Name Description
Spectrophotometry (S) 

Reference Range

Pyruvic Acid, CSF
Sex Age From Age To Type Range Range Unit
   Years99 YearsNormal0.03 - 0.15mmol/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.