Test Overview

Test Methodology


Test Usage

Therapeutic drug monitoring.

Reference Range*

Therapeutic Range: 10 - 150 ng/mL. Critical Value: 1000 ng/mL.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details

Analytic Time

5 days

Soft Order Code





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Laboratory Reference

Mayo Wild 80 (ZW80) (MedTox 109)

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Specimen Requirements

Offsite Collection Instructions

Collect specimen in a red top or green top tube. Centrifuge, aliquot serum or plasma into a plastic vial and refrigerate.

Normal Volume

2 mL serum or plasma

Minimum Volume

2 mL serum or plasam

Additional Information

Test sent to Mayo Medical Laboratories; performed by MedTox Laboratories.

Billing Information

Fee Codes

CPT Code


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