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HelpTest Code VALP VALPROIC ACID, DEPAKOTE LEVEL
Performing Location
Specimen Required/Volume
1.0 mL
Specimen Type
Plasma or serum
Collection Container
Light Green (lithium heparin), Gold top, or Marble Red top vacutainer
Collection Instructions
Refer to Venipuncture Protocol
Steady state:
30-85 hours for adults
20-70 hours for children
Peak: 1-3 hours after oral dose
Trough: immediately prior to next oral dose
Reference Values
Therapeutic range: 50.0 – 100.0 ug/mL
Clinical discretion needed: 100 – 150 ug/mL
Toxic Range: > 150 ug/mL
Turn-Around Guidelines
Upon arrival
Method
Homogenous enzyme immunoassay - Roche cobas
LOINC
4086-5
CPT
80164