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Lab Test Dictionary

Valproic Acid, Free (3314)

Methodology

Immunoassay (IA)

Specimen Type

Serum or Plasma

Performing Lab

Quest Diagnostics Valencia

Epic ID

Other Reference Test

Lab Test Days

Monday-Saturday

Standard TAT

1-3 Days

Collection Information

Specimen Required

2-6 mL Blood

Container Type

Red Top (No Additive)

Collection Instructions

Plasma collected in and EDTA (lavender-top) tube is also acceptable. Do not use gel barrier tubes. Avoid contact of samples with plasticizers, varnishes, paint fumes, and fatty acids. Collect as trough just before next dose (optimum time to collect sample: 1 hour prior to next dose).

Processing Information - Lab Use Only

Transport Temperature

Refrigerate-OK/Frozen-OK

Specimen Stability

Room Temp: 48 Hours; Refrigerated: 7 Days; Frozen: 60 Days

Rejection Criteria

Serum separator tube (SST)

Test Volume Required

3 mL Serum or Plasma

Minimum Test Volume

1 mL Serum or Plasma

CPT Codes

80165

Revised

07-07-19