All tests · Therapeutic Drug Levels
Therapeutic Drug Levels
Normal range 50-100 µg/mL (347-693 µmol/L SI). Specimen: Serum (trough).
Also known as: Depakote level, valproate.
Combined adult band. LabVals does not publish separate men's, women's, or pediatric ranges for Valproic Acid Level; those can be narrower than the band shown.
| Specimen | Serum (trough) |
|---|---|
| Conventional range | 50-100 µg/mL |
| SI range | 347-693 µmol/L |
| Conversion factor | ×6.93 (conventional → SI) |
| Toxicity threshold | > 100-150 µg/mL (sedation, tremor) |
| Panel | Therapeutic Drug Levels |
Convert any Valproic Acid Level result between units on the unit converter.
The standard teaching reference range for Valproic Acid Level is 50-100 µg/mL in conventional units, or 347-693 µmol/L in SI units. This value is measured in serum (trough).
For Valproic Acid Level, the commonly taught toxicity threshold is: > 100-150 µg/mL (sedation, tremor).
Source: Adult reference values compiled from Pagana & Pagana, Mosby's Diagnostic and Laboratory Test Reference, and Fischbach & Dunning, A Manual of Laboratory and Diagnostic Tests. Reference ranges vary by laboratory, method, age, sex, and population - always use the range printed on the actual result.
Above the range
What causes a high Valproic Acid Level? Read as its own page
Below the range
At the bedside
You have the Valproic Acid Level range. Premium unlocks the 9-card Therapeutic Drug Levels flashcard deck with mastery tracking, study sheets that put several panels on one printable page, and unlimited practice across all 440 quiz questions - the free round stops at 10 a day.
Same panel