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Valproic Acid Level (Depakene)
Test CodeLAB24
Alias/See Also
1231100121
CPT Codes
80164
Includes
VALPROIC ACID LEVEL (DEPAKENE)
Preferred Specimen
CLINIC COLLECTIONS: Green Lithium Heparin tube (Gel separator preferred)
Minimum Volume
CLINIC COLLECTIONS: 0.5 mL plasma
Instructions
CLINIC COLLECTIONS: Collect 0.5 ml plasma in Green Lithium Heparin tube (Gel separator preferred). Must be spun within 2 hours after collection. If no gel separator, plasma must be pulled off cells within 2 hours.
If collecting with AST, ALT, VD25, K+, or LDH, label routes to Gold/SST. Collect 1.0 mL of serum in Gold/SST. Must be spun within 2 hours after collection.
If collecting with AST, ALT, VD25, K+, or LDH, label routes to Gold/SST. Collect 1.0 mL of serum in Gold/SST. Must be spun within 2 hours after collection.
Transport Temperature
Refrigerated
Specimen Stability
Refrigerated (2 to 8°C): 48 hours
Freezer (-20°C): 7 days (168 hours)
Freezer (-20°C): 7 days (168 hours)
Methodology
Abbott Alinity
Reference Range
Males/Females:
50.00-100.00 ug/mL
50.00-100.00 ug/mL
Performing Laboratory
FORT SMITH LABORATORY LITTLE ROCK LABORATORY MALVERN LABORATORY
Last Updated: August 26, 2026
