Test Overview
Test Methodology
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Test Usage
Therapeutic Drug Monitoring
Reference Range *
5 - 25 ng/ml. Some patients respond well to high dose alprazolam therapy with resultant serum concentrations of 30 - 55 ng/ml.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
Days Set Up
Daily
Analytic Time
7 - 11 days
Soft Order Code
MMLR
Synonyms
- Xanax
Laboratory
Sendout
Reference Laboratory
Mayo FALPX (MedTox 8)
Section
Special Testing
Specimen Requirements
Collection Instructions
Collect specimen in a red top tube; do not use SST tube. Centrifuge, aliquot serum into a plastic vial, and store at room temperature or refrigerate.
Normal Volume
2 mL serum or plasma
Minimum Volume
1 mL serum or plasma
Rejection Criteria
SST tube not acceptable.
Additional Information
Test sent to Mayo Medical Laboratories; performed by MedTox Laboratories.
Billing
CPT Code
80346
LOINC
3312-6