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HelpTest Code MISCLM Valproic Acid, Free, Serum
Additional Codes
|
MAYO Test ID |
|
VALPF |
|
EPIC Test ID |
|
LAB2608 |
Useful For
Monitoring free valproic acid in therapy
Assessing compliance
Evaluating potential toxicity
Method Name
Ultrafiltration Followed by Immunoassay
Reporting Name
Valproic Acid, Free, SSpecimen Type
SerumSpecimen Required
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 2 mL
Collection Instructions:
1. Serum gel tubes should be centrifuged within 2 hours of collection.
2. Red-top tubes should be centrifuged, and the serum aliquoted into a plastic vial within 2 hours of collection.
Specimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 14 days | |
| Frozen | 28 days | ||
| Ambient | 72 hours |
Reject Due To
| Gross hemolysis | Reject |
Reference Values
Therapeutic: 5-25 mcg/mL
Critical value: >30 mcg/mL
Day(s) Performed
Monday through Sunday
Report Available
Same day/1 dayPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
80165
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| VALPF | Valproic Acid, Free, S | 4087-3 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| VALPF | Valproic Acid, Free, S | 4087-3 |
Forms
If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.