At a Glance
Why Get Tested?
To determine the concentration of valproic acid in your blood and to maintain a therapeutic level
When to Get Tested?
At regular intervals to monitor the drug's level; to detect low or excessive (potentially toxic) concentrations
A blood sample drawn from a vein in your arm
Test Preparation Needed?
No special test preparation needed, but talk to your health care provider about the timing of sample collection. Since dosage timing varies and some formulations are time-released, collection specifics may vary. Often, the recommended time for sample collection is just before the next dose is taken.