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Laboratory Medicine

Test catalogue

Valproic Acid (Depakene, 2-propylpentanoic acid)

Test name

Valproic Acid (Depakene, 2-propylpentanoic acid)

Red Tube with thin top Specimen Type/Requirements

Container Type = 1 Red Top

Minimum Volume = 3 ml Blood

Specimen Handling

Collection Instructions: Collect sample in red top tube. Avoid gold top (SST). Collect blood prior to next dose, preferably in fasting state. Record time of collection and time of last dose. Write your initials, date and time of collection on the collection label or requisition.

Laboratory Staff Instructions: Separate samples from cells as soon as possible. Repeated freezing and thawing of samples should be avoided.

Rejection Criteria: Gel separator, grossly hemolyzed and icteric samples, Unlabeled or Not Sufficient Quantity samples will be rejected.

Stability: Stable for 24hr at room temperature, 1 week refrigerated , and 3 months frozen.

Transportation: Send sample to core lab as soon as possible.

Required Documentation

Regular HIS order or Biochemistry requisition required.

Turnaround Time (TAT)

1 hour for Trauma/Stat and 2 hours for routine

Test Utilization

Reference value

Therapeutic: 350-700 umol/L

Toxic: >1400 umol/L

Test Code



Competitive Binding Immunoenzymatic Assay

Testing Location


Other Information

Last Updated: June 06, 2019