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Epic Code LAB24 Valproic Acid Total, Blood Level

Test Name Alias

Valproic Acid Level | Valproic Acid Blood Level | Divalproex | Valproate | Dipropylacetic Acid | Depakote | Epilim | Valparin | Valpro | Vilapro | Stavzor | Depakene | Epilim | 8350

Interface Order Alias

10272

Ordering Instructions

Inpatients: Please contact your local inpatient pharmacy for information regarding appropriate timing for blood drug level orders, if needed.

Collection Instructions

Specimen Collection: Blood

 

Container(s): 4.5 mL Mint Green Top (Lithium Heparin Gel) or 5.0 mL Gold Top (Serum Separator-SST Gel)

  • Preferred Volume to Collect: 4.5 mL
  • Minimum Volume to Collect: 1.0 mL
  • Neonate Volume to Collect: 1.0 mL
  • Capillary collect ok? Yes
  • Microtainer acceptable: Yes

 

Collection Instructions:

  • Avoid gross hemolysis
  • After collection, gently invert tube 8-10 times.
  • Indicate date and time of last dose.
  • Specimen should be processed within 2 hours – See Processing Instructions.

 

Processing Instructions (Laboratory, Outpatient or Off-site collection)

  • Processed Specimen: Plasma or Serum
  • Centrifuge/Spin: Yes
  • Aliquot: Yes
  • Processing Instructions:
    • Plasma is preferred specimen type
    • Green Tube/Plasma: Centrifuge after collection.
    • Gold Tube/Serum: Allow blood to clot for 30 minutes in a vertical position and centrifuge within 2 hours.
    • Minimum volume plasma/serum: 0.5 mL plasma or serum
  • Transport Temperature: Refrigerate

 

Lab Staff Instructions

Corewell Health Reference Laboratory Processing Staff: Red top (Plain) and Green top (Lithium Heparin, non-gel) acceptable.

Specimen Stability

Ambient: 8 hours

Refrigerate: 24 hours (48 hours if aliquoted serum/plasma)

Frozen: aliquot plasma/serum for longer storage

Laboratory Retention: 72 hours

Test Frequency

Available 24 hours, usual TAT 1 day.

Reference Range

50 – 100 mcg/mL

 

Laboratory Critical Values Table

Performing Department

Chemistry

Performing Department Laboratory Location

Corewell Health Reference Laboratory, Grand Rapids, MI
Corewell Health Big Rapids Laboratory, Big Rapids, MI
Corewell Health Gerber Laboratory, Fremont, MI
Corewell Health Ludington Laboratory, Ludington, MI
Corewell Health Pennock Laboratory, Hastings, MI
Corewell Health Reed City Laboratory, Reed City, MI
Corewell Health Greenville Laboratory, Greenville, MI

Methodology

Homogeneous Enzyme Immunoassay

CPT

80164

CDM Code

3018016401

Epic Test ID

1230101271

LOINC

Valproic Acid Lvl: 4086-5

Reviewed Date

3/7/2024