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Test Code Valproic Valproic Acid Level

Important Note

No add-ons after 8 hours of collection if specimen is still on gel separator.

Clinical System Name

Valproic Acid Level

Synonyms

Depakene
Depakote
Sodium Valproate
Valproate

Sample Requirements

Specimen:  Whole Blood

Container(s):  Gold SST, Red Tube, Lt. Green/Lithium Heparin Microtainer,Gold Microtainer, or Dark Green/Sodium Heparin

Preferred Vol:  1.0 mL

Minimum Vol:  0.5 mL

 

Note:  Draw specimen just before next dose.  Method is not affected by hemolysis (hemoglobin <300 mG/dL), icterus (bilirubin <30 mG/dL) or lipemia (triglycerides <200 mG/dL).

Processing Instructions

Reject due to: Age of specimen, incorrect collection container

Spin: Y

Aliquot:  Y

Temp: 2-8oC

Storage location: Core 5 Chemistry Refrigerator

 

Off-site collection: Draw specimen just before next dose. Spin blood, send serum or plasma frozen.

Stability

Specimen Type Temperature Time
Serum or Plasma RT

1 D

Serum or Plasma 2-8oC

 14 D

Serum or Plasma -20oC or -70oC

14 D

 

Availability

STAT Performed TAT
Y 24/7 1 H

 

Performing Laboratory

Seattle Children's Laboratory    

Department

Department:  Core Chemistry

Phone Number: 206-987-2617

Reference Range

 

 

uG/mL

Therapeutic

50 - 100

Toxic

>200

 

Methodology

Method: Two Point Rate by Vitros 4600

Minimum Volume: 0.10 mL serum or plasma

Analytical Volume:  0.06 mL serum or plasma + 0.03 mL dead space

CPT Codes

80164