Pyruvic Acid, CSF (Special Handling)


Sunquest Code:PYRCSF  
Epic Code:LAB6042Epic Name:Pyruvic Acid, CSF
Methodology:Enzymatic
CPT Code:84210
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat. Results reported in 1-2 days.


Collection Instructions

Specimen:CSF
Optimal Volume:2 mL
Minimum\Peds Volume:1 mL
Collection Instructions:Special handling required. Immediately after the collection of CSF, transfer exactly 1 mL well mixed CSF into a chilled pyruvate collection tube (obtained through ARUP Client Services) containing 2 mL 8% (w/v) perchloric acid. Mix thoroughly by inverting 10-15 times and place in an ice bath for 10 minutes.
Patient Preparation:Patient should be fasting and at complete rest. Patient should avoid any exercise of the arm or hand before or during collection.


Processing and Shipping

Specimen Processing:Special handling required. Processing must occur before the sample is transported between campuses/sites. Immediately centrifuge mixed specimen at 1500 x g (RCF) for 10 minutes Decant 2 mL; 1 mL minimum supernatant to an ARUP Standard Transport tube and freeze immediately.
Shipping Instructions:Ship on dry ice.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:80312 (PYRU CSF)


Interpretive

Reference Range:0.060 - 0.190 mmol/L
Limitations:If less than 1 mL of CSF is added to collection tube, pH of the supernatant will be too low for testing to be performed.


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