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3314: Valproic Acid, Free Print View
Valproic Acid, Free IA  4.8 - 17.3  mg/L 

PRIMARY
1 Serum Red Top 3 (1) mL   Refrigerated - 7 Day(s)/Room Temperature - 48 Hour(s)/Frozen - 60 Day(s)  
ALTERNATE
  Plasma EDTA 3 (1) mL   Frozen - 60 Day(s)/Room Temperature - 48 Hour(s)/Refrigerated - 7 Day(s)  
  Serum Royal Blue 3 (1) mL   Frozen - 60 Day(s)/Refrigerated - 7 Day(s)/Room Temperature - 48 Hour(s)  
  Plasma EDTA Trace Metal 3 (1) mL   Refrigerated - 7 Day(s)/Frozen - 60 Day(s)/Room Temperature - 48 Hour(s)  

Valproic acid is used as an anticonvulsant to treat certain types of seizures, to prevent migraine headaches and to treat various psychiatric illnesses such as bipolar disorder and aggression. Drugs that compete for protein-binding sites with Valproic Acid, can increase the concentration of Valproic Acid. Measurement of the free concentration is useful if toxicity is suspected.

Patient Preparation: Avoid contact of samples with plasticizers,
varnishes, paint fumes, and fatty acids. Collect as a trough just
before next dose (Optimum time to collect sample: 1 hour before
next dose.).

Instructions:
Do not use gel barrier tubes. Centrifuge and immediately separate
serum or plasma specimens from the cells into clean, plastic,
screw-capped vial(s). Do not use serum separator tubes.
Submission of a serum separator tube will result in cancellation.
Setup Schedule
Monday-Saturday

Reported (Analytical Time)
Same day

CPT Code
80165

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Notes
Transport temperature: Refrigerated Reject Criteria: Serum Separator Tube






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