Test Code VAL Valproic Acid Level
EHR Test Codes
| Test Code | Test Name | |
| Atlas | VAL | Valproic Acid |
| Cerner | Valproic Acid Level |
Specimen Requirements
Preparation of Patient:
Collect a specimen representing the trough level just before the next dose
Container Type:
Green Top 5mL Lithium Heparin Separator Tube
Or
Gold Top 6mL SST Gel & Clot Activator Tube
Specimen Type:
Plasma or Serum
Specimen Volume:
2.5 mL Plasma or Serum minimum .5 mL
Specimen Handling/Transport:
Separate plasma or serum from cells within 2 hours of collection.
Transport ambient room temperature.
Specimen Stability/Storage:
1 day refrigerated 2-8°C
Performing Laboratory
Munson Medical Center Laboratories
Chemistry Department
Priority, Frequency, & Turnaround
Priority:
STAT, ASAP, Non-Emergent
Frequency:
24 hours 7 days a week
Turnaround:
0 - 1 days
STAT 45 minute from receipt in lab
Methodology
EMIT Enzyme immunoassay
Reporting
Reference Range:
50 - 100 ug/mL
Critical Decision:
≥ 150 ug/mL
Note: Critical values are called to the provider and communicated as critical. Documentation of the call is recorded in the patient record.
Clinical Significance
Valproic acid is a broad-spectrum anticonvulsant drug used solely or in combination with other anticonvulsant drugs for the treatment of absence seizures.
CPT Code(s)
80164